large images not working

[maester]

I upgraded from 1.43 to 1.44
using php 4.42
gallery is bridged to forum
Everything works perfect thumbs normal etc but when click on the normal to go to the max image instead of taking me to the max image it redirects me back to the forum as if I were trying to go there.what and where do I need to go to fix this issue.It only does it on 1 gallery and trhats the babes gallery all the other galleries work perfect

I will post the link however there is some 18+ material

http://www.nsdq-clan.com/coppermine [Edit GauGau] Warning: link not worksafe [/edit]
user:test
pass:test

[Nibbler]

The actual error is an Internal Server Error (500), you seem to have your error pages redirect people to the portal instead of providing an error message. I don't know what causes the error though, try asking your webhost.

[maester]

I know they did a downgrade of php from 5.05 to 4.43 because there were alot of bugs in php 5.05 such as phpbb not working on them properally could this be the issue that caused the error?