XFileSharing Pro - [HELP] MAJOR ERROR

[spyer]

Good day..

i'm having some problems.. i really don't know what the hell is wrong with it.. it was working fine..

when i click on a link like the one below as a registered or premium user i get the download page.. no problems at all.
http://website.com/t1jqggw1938t/file.rar.html

but when anonymous user click on it.. it shows an error:
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Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Apache/2.2.6 (Unix) mod_ssl/2.2.6 OpenSSL/0.9.7a mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.2.5 Server at website.com Port 80
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Help Please!!

[PilgrimX182]

PM me your FTP access details. Can't help you any other way, sorry.

[spyer]

ok,... check your inbox

[PilgrimX182]

Fixed. There was an error creating PNG captcha image, changed to text captcha - working fine now.

[spyer]

thanks for your effort. but there is still some problem

it's changed to text fine..

the text works fine only on Safari browser.. but IE and Firefox it don't


and i have a question.. what might have caused the error with creating PNG files?

thanks again