After setting up an additional status ("pending"), add agents, departments, custom fields, custom queues and using osTicket so far only for tickets, I receive DB error 1066 + 1054. It happens e.g. when loading queues, but not only. Besides throwing DB errors I don't see any problems arising from the errors.

I found no root entry in the forum, but read some posts with similar reports. I had the impression that in some cases the error could be read from the log entries, so they are added here.

Thank you for any support.

osTicket: v1.14.1 (f1e9e88)
Server: LiteSpeed
MySQL: 5.7.26
PHP: 7.1.33

DB Error #1066

[SELECT COUNT(*) FROM (SELECT A1.ticket_id FROM ostho_ticket A1 JOIN (SELECT COALESCE(Z3.object_id, Z5.ticket_id, Z8.ticket_id) as ticket_id, Z1.relevance FROM (SELECT Z1.object_id, Z1.object_type, MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) AS relevance FROM ostho__search Z1 WHERE MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) ORDER BY relevance DESC) Z1 LEFT JOIN ostho_thread_entry Z2 ON (Z1.object_type = 'H' AND Z1.object_id = Z2.id) LEFT JOIN ostho_thread Z3 ON (Z2.thread_id = Z3.id AND (Z3.object_type = 'T' OR Z3.object_type = 'C')) LEFT JOIN ostho_ticket Z5 ON (Z1.object_type = 'T' AND Z1.object_id = Z5.ticket_id) LEFT JOIN ostho_user Z6 ON (Z6.id = Z1.object_id and Z1.object_type = 'U') LEFT JOIN ostho_organization Z7 ON (Z7.id = Z1.object_id AND Z7.id = Z6.org_id AND Z1.object_type = 'O') LEFT JOIN ostho_ticket Z8 ON (Z8.user_id = Z6.id)) Z1 JOIN (SELECT COALESCE(Z3.object_id, Z5.ticket_id, Z8.ticket_id) as ticket_id, Z1.relevance FROM (SELECT Z1.object_id, Z1.object_type, MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) AS relevance FROM ostho__search Z1 WHERE MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) ORDER BY relevance DESC) Z1 LEFT JOIN ostho_thread_entry Z2 ON (Z1.object_type = 'H' AND Z1.object_id = Z2.id) LEFT JOIN ostho_thread Z3 ON (Z2.thread_id = Z3.id AND (Z3.object_type = 'T' OR Z3.object_type = 'C')) LEFT JOIN ostho_ticket Z5 ON (Z1.object_type = 'T' AND Z1.object_id = Z5.ticket_id) LEFT JOIN ostho_user Z6 ON (Z6.id = Z1.object_id and Z1.object_type = 'U') LEFT JOIN ostho_organization Z7 ON (Z7.id = Z1.object_id AND Z7.id = Z6.org_id AND Z1.object_type = 'O') LEFT JOIN ostho_ticket Z8 ON (Z8.user_id = Z6.id)) Z1 JOIN (SELECT COALESCE(Z3.object_id, Z5.ticket_id, Z8.ticket_id) as ticket_id, Z1.relevance FROM (SELECT Z1.object_id, Z1.object_type, MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) AS relevance FROM ostho__search Z1 WHERE MATCH (Z1.title, Z1.content) AGAINST ('Alles' IN NATURAL LANGUAGE MODE) ORDER BY relevance DESC) Z1 LEFT JOIN ostho_thread_entry Z2 ON (Z1.object_type = 'H' AND Z1.object_id = Z2.id) LEFT JOIN ostho_thread Z3 ON (Z2.thread_id = Z3.id AND (Z3.object_type = 'T' OR Z3.object_type = 'C')) LEFT JOIN ostho_ticket Z5 ON (Z1.object_type = 'T' AND Z1.object_id = Z5.ticket_id) LEFT JOIN ostho_user Z6 ON (Z6.id = Z1.object_id and Z1.object_type = 'U') LEFT JOIN ostho_organization Z7 ON (Z7.id = Z1.object_id AND Z7.id = Z6.org_id AND Z1.object_type = 'O') LEFT JOIN ostho_ticket Z8 ON (Z8.user_id = Z6.id)) Z1 WHERE A1.ticket_id = Z1.ticket_id AND A1.ticket_id = Z1.ticket_id AND A1.ticket_id = Z1.ticket_id ORDER BY Z1.relevance , Z1.relevance , Z1.relevance ) __] Not unique table/alias: 'Z1'

---- Ablaufverfolgung ----
#0 (root)/include/mysqli.php(200): osTicket->logDBError('DB Error #1066', '[SELECT COUNT(...')
#1 (root)/include/class.orm.php(3459): db_query('SELECT COUNT()...', true, true)
#2 (root)/include/class.orm.php(3515): MySqlExecutor->execute()
#3 (root)/include/class.orm.php(2945): MySqlExecutor->getRow()
#4 (root)/include/class.orm.php(1380): MySqlCompiler->compileCount(Object(QuerySet))
#5 (root)/include/class.search.php(897): QuerySet->count()
#6 (root)/include/class.search.php(976): SavedQueue->getTotal()
#7 (root)/scp/autocron.php(43): SavedQueue::counts(Object(StaffSession), false)
#8 {main}

DB Error #1054

[SELECT COUNT(DISTINCT CASE WHEN A2.state = 'open' AND A2.state = 'open' AND A2.state = 'open' AND A1.dept_id = 4 AND A3.object_type = 'T' THEN A1.ticket_id END) AS q15, COUNT(DISTINCT CASE WHEN A1.ticket_id = Z1.ticket_id AND A3.object_type = 'T' THEN A1.ticket_id END) AS q23, COUNT(DISTINCT CASE WHEN A1.ticket_id = Z1.ticket_id AND A1.ticket_id = Z1.ticket_id AND A1.ticket_id = Z1.ticket_id AND A3.object_type = 'T' THEN A1.ticket_id END) AS q24, COUNT(DISTINCT CASE WHEN A1.ticket_id = Z1.ticket_id THEN A1.ticket_id END) AS q25, COUNT(DISTINCT CASE WHEN A1.dept_id = 6 AND A3.object_type = 'T' THEN A1.ticket_id END) AS q26, COUNT(DISTINCT CASE WHEN A1.dept_id = 6 AND A1.dept_id = 6 AND A2.state = 'open' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q27, COUNT(DISTINCT CASE WHEN A1.dept_id = 8 AND A3.object_type = 'T' THEN A1.ticket_id END) AS q28, COUNT(DISTINCT CASE WHEN A1.dept_id = 6 AND A1.dept_id = 6 AND A2.id IN (6) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q29, COUNT(DISTINCT CASE WHEN A1.dept_id = 6 AND A1.dept_id = 6 AND A2.id IN (2) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q30, COUNT(DISTINCT CASE WHEN A1.dept_id = 8 AND A1.dept_id = 8 AND A2.id IN (1) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q31, COUNT(DISTINCT CASE WHEN A1.dept_id = 8 AND A1.dept_id = 8 AND A2.id IN (6) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q32, COUNT(DISTINCT CASE WHEN A1.dept_id = 8 AND A1.dept_id = 8 AND A2.id IN (2) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q33, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A3.object_type = 'T' THEN A1.ticket_id END) AS q16, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A2.state = 'open' AND A2.id IN (1) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q17, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A2.id IN (6) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q18, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A2.id IN (2) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q19, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A2.state = 'closed' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q20, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A1.closed BETWEEN '2020-01-01 00:00:00' AND '2020-12-31 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q21, COUNT(DISTINCT CASE WHEN A1.dept_id = 4 AND A1.dept_id = 4 AND A1.closed BETWEEN '2019-01-01 00:00:00' AND '2019-12-31 23:59:59' AND A1.ticket_id = Z1.ticket_id AND A3.object_type = 'T' THEN A1.ticket_id END) AS q22, COUNT(DISTINCT CASE WHEN A2.state = 'open' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q1, COUNT(DISTINCT CASE WHEN A2.state = 'open' AND A2.state = 'open' AND A1.isanswered = '0' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q2, COUNT(DISTINCT CASE WHEN A2.state = 'open' AND A2.state = 'open' AND A1.isanswered = '1' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q3, COUNT(DISTINCT CASE WHEN A2.state = 'open' AND A2.state = 'open' AND A1.isoverdue = '1' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q4, COUNT(DISTINCT CASE WHEN A1.staff_id IN (1) AND A2.state = 'open' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q5, COUNT(DISTINCT CASE WHEN A1.staff_id IN (1) AND A2.state = 'open' AND A1.staff_id IN (1) AND A2.state = 'open' AND A1.staff_id IN (1) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q6, COUNT(DISTINCT CASE WHEN A1.staff_id IN (1) AND A2.state = 'open' AND A1.staff_id IN (1) AND A2.state = 'open' AND NOT A1.staff_id IN (1) AND A3.object_type = 'T' THEN A1.ticket_id END) AS q7, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q8, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2020-01-02 00:00:00' AND '2020-01-02 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q9, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2020-01-01 00:00:00' AND '2020-01-01 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q10, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2019-12-30 00:00:00' AND '2020-01-05 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q11, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2020-01-01 00:00:00' AND '2020-01-31 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q12, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2020-01-01 00:00:00' AND '2020-03-31 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q13, COUNT(DISTINCT CASE WHEN A2.state = 'closed' AND A2.state = 'closed' AND A1.closed BETWEEN '2020-01-01 00:00:00' AND '2020-12-31 23:59:59' AND A3.object_type = 'T' THEN A1.ticket_id END) AS q14 FROM ostho_ticket A1 JOIN ostho_ticket_status A2 ON (A1.status_id = A2.id) LEFT JOIN ostho_thread A3 ON (A3.object_type = 'T' AND A1.ticket_id = A3.object_id) LEFT JOIN ostho_thread_referral A4 ON (A3.id = A4.thread_id) LEFT JOIN ostho_staff A5 ON (A4.object_type = 'S' AND A4.object_id = A5.staff_id) LEFT JOIN ostho_thread A6 ON (A1.ticket_id = A6.object_id AND A6.object_type = 'C') LEFT JOIN ostho_thread_referral A7 ON (A6.id = A7.thread_id) LEFT JOIN ostho_staff A8 ON (A7.object_type = 'S' AND A7.object_id = A8.staff_id) LEFT JOIN ostho_department B0 ON (A4.object_type = 'D' AND A4.object_id = B0.id) LEFT JOIN ostho_department B1 ON (A7.object_type = 'D' AND A7.object_id = B1.id) WHERE ((A2.state = 'open' AND (A1.staff_id = 1 OR A5.staff_id = 1 OR A6.object_type = 'C' AND A8.staff_id = 1)) OR (A2.state IN ('open', 'closed') AND (A1.dept_id IN (3, 4, 5, 6, 7, 8) OR B0.id IN (3, 4, 5, 6, 7, 8))) OR A6.object_type = 'C' AND B1.id IN (3, 4, 5, 6, 7, 8))] Unknown column 'Z1.ticket_id' in 'field list'

---- Ablaufverfolgung ----
#0 (root)/include/mysqli.php(200): osTicket->logDBError('DB Error #1054', '[SELECT COUNT(D...')
#1 (root)/include/class.orm.php(3459): db_query('SELECT COUNT(DI...', true, true)
#2 (root)/include/class.orm.php(3506): MySqlExecutor->execute()
#3 (root)/include/class.orm.php(2093): MySqlExecutor->getArray()
#4 (root)/include/class.orm.php(2043): HashArrayIterator->{closure}()
#5 (root)/include/class.orm.php(2022): CallbackSimpleIterator->next()
#6 (root)/include/class.orm.php(2031): CallbackSimpleIterator->rewind()
#7 (root)/include/class.orm.php(1703): CallbackSimpleIterator->valid()
#8 (root)/include/class.orm.php(1713): CachedResultSet->fillTo(9223372036854775807)
#9 (root)/include/class.orm.php(1336): CachedResultSet->asArray()
#10 (root)/include/class.orm.php(1359): QuerySet->all()
#11 (root)/include/class.search.php(973): QuerySet->one()
#12 (root)/scp/autocron.php(43): SavedQueue::counts(Object(StaffSession), false)
#13 {main}