White Screenshot after changing host

[Xanders]

Hello friends, I changed my server and I can think of a very strange thing, I commented:

First I made a copy of the host and db, then went up everything as much db files.
But when I try to post or trying to do something worthy of an action (post, optimize deleting a post). I go blank. if such posteo is blank but if postea.

done the same in local and have not had any problems.

Any solution? Thanks beforehand

[MrPhil]

Are you getting any error messages? Look in the SMF admin error log, the site control panel error log, and for error files dropped in your SMF code directories (typical name: error_log). Somewhere in all those you'll get a listing of the error(s) causing you to see no output (typically a PHP syntax error due to a file corrupted by a modification error or a hack).