Hi,
after update to osTicket v1.17.3 (from 1.10) I do receive emails with info:
Email header: IOException: Unable to read resource content
/home/html/kronzi.sk/public_html/_sub/dopyt/upload/z/zWMleTQtrPHmxD23Mfpg8x2AsKSNqHpY: Unable to delete file
http://dopyt[dot]kronzi[dot]sk
When I try to find the file zWMleTQtrPHmxD23Mfpg8x2AsKSNqHpY in upload folder of my osticket there is no such file.
This is also seen in system events.
What could be the problem. Yes I`m using plugin:
Attachments on the filesystem
Osticket info:

Can you point me to right direction?
Thanks in advance.