Blank page at admin login

[Seowebby]

Hi guys,
I'm having a problem with phpBB.
The forum is integrated in a wordpress site and it worked fine until, without any changes (except of the ordinary updates), if I try to access the ACP, a blank page appears and nothing more happens.
This both if I reach the forum via site and if I reach the forum directly with a "/forum" in the adress.
In the meanwhile my account get automatically disconnected by the site.
I searched on internet but didn't find useful solutions.
Does anyone experemented a problem like this?
Do you have any suggestion?

Thank you

[axew3]

Hi! since the integration not modify any file in phpBB (except the overall_footer.html you need to edit, if using iframe) it not depend directly by the fact you have install the WP integration plugin, in case. But maybe because the cookie procedure so,
if you have change setting into ACP about cookie adding the dot in front, have you so logout, clean your cookie on browser and re-login?
Not think is your case, as i have understand your is a pre-existent and working install ... by the way have you try to logout clean cookies on browser and re-login? Same result?

Have you install some phpBB mod just before this behavior?
Have you edit some phpBB file with text editor and so saved it with wrong BOM? It should be maybe UTF8 NO BOM in case
Have you change any chmod permission on some folder? Reset permissions in case ...

check this post if not already done, may will help:
https://www.phpbb.com/community/viewtop ... &t=2381976
let know

[EDITED]

[Seowebby]

Hi!

Thank you for your answer.
I have read the post and I checked if the name and the path of the cookies but everything seems to be ok.

For the rest I confirm that nothing was modified and that the problem suddenly appeared.

So nothing of this

Have you install some phpBB mod just before this behavior?
Have you edit some phpBB file with text editor and so saved it with wrong BOM? It should be maybe UTF8 NO BOM in case
Have you change any chmod permission on some folder? Reset permissions in case ...

has been made.

[axew3]

This both if I reach the forum via site and if I reach the forum directly with a "/forum" in the adress.

mh ... sorry, this mean, it happen if you open it via WP page (so iframe) or direct url to phpBB, so on both cases, or what?

Have you try also as suggested on linked post, something like this?

The problem could be your cookie settings.

cookie domain: yoursite.com
should be : .yoursite.com ( the dot in front )
cookie path should be : / ( just the slash, nothing else )
change that from the admin panel cookie settings.

If the above is already ok for you as i think, than just:

purge the cache from the admin panel main page
CLEAN cookies from your browser (i've add this step)
refresh your browser to get the new cookie.
Login

???

[Seowebby]

Cookie domain seems to be ok and so the path.

The problem happens by accessing the forum both via site and directly. I mean that even if I access to the forum via www.mydomain.org/forum I get the same issue.

purge the cache from the admin panel main page

Which "cache" do you mean? And which "admin panel" do you mean?
The forum "cache" and the "admin panel"?
I cannot access the forum admin panel, that's the problem!!!

Thank you once more

[axew3]

ah ok! This look like a problem in phpBB only.

So, have you try to clean up cookies into your browser, so re-login?
At this point i think yes with no lucky, or not?

To purge the cache manually, since you can't access ACP:
on phpBB 3.1:

How to purge your cache manually 3.1
Access your FTP server (or other method to access files)
Navigate to the /whereyouinstalledphpbb/cache directory
Delete all files except for the index.htm and .htaccess files (the .htaccess file may not be visible)
You're done!

as explained here: https://www.phpbb.com/support/docs/en/3 ... pbb-cache/

WHILE for phpBB 3.2 you may do this:
navigate to folder:
/yourphpBB/cache/production
and DELETE all files contained inside this folder (do not delete the folder).
OR better, just to be sure you can after restore in case, maybe rename the folder production into
production_off
so create a new empty one, named production inside the cache folder
(than you can restore with easy the old one with his content whenever necessary)

When you've update your phpBB, have you perform the step about update of the database, and this has been finished without any error?