MyBB Community Forums

Hello i have a problem whit login.

In the forum and ACP i can login correctly.
But in ACP if i try to change location example: Template and Style

I see this error:

Invalid Administration Session.


I Have try to see cookie path
but is correct

.mywebsite.net
/forum/

So, if i see Dev Console whit Google Chrome i see this


admincp.js:23 Uncaught TypeError: Event.observe is not a function(anonymous function) @ admincp.js:23

what is your forum url ?

run file verification tool from below location. what does it report ?

admin panel >> tools & maintenance >> file verification
ignore reported images & ignore files reported from install folder & its sub-folders