osTicket FAQ Database

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End-user ticket view links in email notifications return 404 or ask for username/password instead of showing the ticket thread anonymously. ▲ 0
HTTP 500 fatal error: 'Uncaught DateMalformedStringException: DateTime::modify(): Failed to parse time string (Gennaio 1 2026)' in class.schedule.php on open.php. Fresh install with Italian language pack. ▲ 0
After submitting a reply, osTicket stays on the ticket page. In old versions (v1.9.x) it returned to the ticket list. How do I change this? ▲ 0
OAuth2 returns 'No input file specified' error when authorizing a Microsoft 365 mailbox on Apache with mod_fcgid ▲ 0
How do I view more detailed error logs for osTicket to troubleshoot outgoing email issues? ▲ 0
Invalid CSRF Token errors on a very old osTicket version (v1.15.4), agents cannot log in. ▲ 0
Search stops working after major version upgrade (e.g. from v1.9.x to v1.18.x). ost__search table does not exist. ▲ 0
Emails give 'Excessive errors processing emails' with 'Invalid header value detected'. Specific client emails fail; forwarding them through webmail fixes the issue. Happens with Exchange and Google Workspace senders. ▲ 0
Authentication Required error on osTicket after upgrade. Agents get logged out and cannot log back in until browser cookies are manually cleared. ▲ 0
How do I sort/find assigned agents/departments more easily when the list is very long due to many disabled entries? ▲ 0

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120 FAQs • 12 HowTo Guides • 21 Plugins