errors after upgrading to 3.5

[qatarson]

I get these error after upgrading from 3.0.7 to 3.5

Invalid argument supplied for foreach() in /includes/class_core.php on line 2727

Unable to add cookies, header already sent.
File: /home/httpd/vhosts/****/httpdocs/forums/includes/class_core.php
Line: 2948

I donno what is the problem I upload my file many time in ASICI mode but the problem still there i'm usign vbportal and even the same error with vbportal but when I test the file with fresh database with one user both of the forums & the portal working so when I restroe the dump file of my forums database always get on includes/class_core.php errors with keep change numbers of the error

[Steve Machol]

This is definitely a problem with a bad file. Reupload all the original vB non-image files (except install.php). Make sure you upload these in ASCII format and overwrite the ones on the server.

[qatarson]

I did still have same problem

I tried tools.php & fixing the database even I still get these error messages I wonder how it is works if I dumped fresh ( test) database but when I dump my database I get these errors while dump my database I can see the forums for secounds but when the database inserted into the tables 100% i face these messages

Invalid argument supplied for foreach() in /includes/class_core.php on line 2727

Unable to add cookies, header already sent.
File: /home/httpd/vhosts/****/httpdocs/forums/includes/class_core.php
Line: 2948

[Steve Machol]

Looks like a bad phrase. Did you install any language packs or add phrases?

Try this. Reupload the original vbulletin.language.xml file in the install directory. Then upload the tools.php script in the 'do_not_upload' folder of the vB zip file to your Admin CP directory. Then reimport the vbulletin-language.xml file. Immediately remove tools.php when you are done.