I was crating bug to GitHub, but thought that this could be know issue, after upgrade, so thats why added this question first... I did se you managed to do it fist, so I added information to there. I use tags, both 1.4.5 and 1.4.6 has this issue.
pitaj created this issue in NodeBB/NodeBB
Upload cover picture does not work when using subfolder
Problem solved. For this topic to be any usefull at all:
Run into first problem trying to point and click install 2 nodebb instances( test and the actual) on the same server and obviously, both couldn't listen on the same 4567 port.
Second, did the second install from the old docs on readthedocs instead of the official ones from nodebb.
Third, forgot to also add php-fpm directives to my Nginx config. And start Mongodb.
Thank you very much @PitaJ . now it is ok. but i remember that i had same problem two days ago after configure ngnix and config. site was good also i entered some categories and soon suddenly i got above errors. i hope it wont give error again.