My forums appear like this....
![[Image: 39R4jI6.png]](https://camo.mybb.com/7ff3daf87b2185b02c234200c4d78a35caa709ca/687474703a2f2f692e696d6775722e636f6d2f333952346a49362e706e67)
what is your forum url & which theme you are using ?
see this guidance =>
broken styles
Looks like the CSS has given up on itself.
CSS file permission or image file permissions could be the issue. Try using File manager, see what permissions are assigned to which.