MyBB Community Forums

hi
after i move my forum from one host to another, i can't see my site.
actually admin control panel work perfect and data base is ok, but when i want load index.php or portal.php or member.php or...
this error comes up:
Fatal error: Class 'postParser' not found in /home/ran2ir/domains/ran2.ir/public_html/forum/portal.php on line 39
and for index.php:
Fatal error: Class 'postParser' not found in /home/ran2ir/domains/ran2.ir/public_html/forum/index.php on line 23

php version: 5.3.26
mybb: 1.6.8
forum address: http://www.ran2.ir/forum/

please help me!

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i find it! i find it!
i replaced "class_parser.php" with new fresh one. its work.
but i afraid! is this way ok?

replacing class_parser.php is the correct method however it is better to update your forum to the latest version

thanks.