I need advise on this email fetch issue.
Checking in the error_log in the api folder:

[22-Dec-2025 13:45:24 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834
[22-Dec-2025 13:50:17 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834
[22-Dec-2025 13:55:17 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834
[22-Dec-2025 14:00:15 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834
[22-Dec-2025 14:05:15 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834
[22-Dec-2025 14:10:16 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 40894496 bytes) in /home/{HOSTNAMEGOESHERE}/public_html/support/include/pear/Mail/mimeDecode.php on line 834

Reference used:

Context:

Shared host, using cPanel.
Email provider is Google Workspace. All emails are linked to company's Google Workspace domain.
Using Google OAuth2 with GMail API permission for SMTP setup (Application Password was lost again because I broke into the email with admin power again). Internal only.
osTicket v1.18.2
Apache
MySQL 5.7.44
PHP 8.2.29
Issue started last Friday suddenly. I am suspecting the shared host provider did something but I just cannot prove it.

osTicket server information:

SMTP email settings:

osTicket email settings:

osTicket email setup (using OAuth2 now):

Cronjob at cPanel:

Currently, the SMTP email have 14 emails stuck in inbox since last Friday:

The php.ini in question:

; cPanel-generated php ini directives, do not edit
; Manual editing of this file may result in unexpected behavior.
; To make changes to this file, use the cPanel MultiPHP INI Editor (Home >> Software >> MultiPHP INI Editor)
; For more information, read our documentation (https://go.cpanel.net/EA4ModifyINI)

allow_url_fopen = Off
allow_url_include = Off
display_errors = Off
enable_dl = Off
error_log = "/home/{HOSTNAMEGOESHERE}/public_html/support/php_error.log"
file_uploads = On
max_execution_time = 3000
max_input_time = 6000
max_input_vars = 1000
memory_limit = 512M
post_max_size = 512M
session.gc_maxlifetime = 1440
session.save_path = "/var/cpanel/php/sessions/ea-php72"
upload_max_filesize = 512M
zlib.output_compression = Off

log_errors = On

error_reporting = E_ALL

display_startup_errors = Off