Thank you for your repply, I asked my hosting provider to move to a new server because PHP 7.4.0 was not allowed in the last one, so they will do this tomorrow.
While this process is done I found this error: jquery-3.4.0.min.js?f1e9e88:2 GET https://servicedesk.ioip.com.co/scp/ajax.php/export/655xX5/check 404

In related to console error logs no one is related with Osticket.
But in PHP error logs I also found this:
[12-Dec-2019 20:05:32 UTC] PHP Warning: fopen(): Filename cannot be empty in /home/ioip/public_html/servicedesk/include/ajax.draft.php on line 62
[12-Dec-2019 20:05:32 UTC] PHP Warning: fread() expects parameter 1 to be resource, bool given in /home/ioip/public_html/servicedesk/include/ajax.draft.php on line 63
[12-Dec-2019 20:05:32 UTC] PHP Warning: fclose() expects parameter 1 to be resource, bool given in /home/ioip/public_html/servicedesk/include/ajax.draft.php on line 74
Hope this can help. Thank you.