PHP Error at user Registration after Upgrade

[tomtom76]

Support Request Template
What version of phpBB are you using? phpBB 3.0.5
What is your board's URL? http://www.tobit-forum.info
Who do you host your board with? hawkhost
How did you install your board? I used the download package from phpBB.com
Is your board a fresh install or a conversion? Fresh Install
Do you have any MODs installed? Yes
Is registration required to reproduce this issue? No
What MODs do you have installed? Seo, Poral and Ad Management
What styles do you currently have installed? Standard
What language(s) is your board currently using? German
Which database type/version are you using? MySQL 5
What is your level of experience? New to PHP and phpBB
When did your problem begin? After Upgrade from 3.0.4 to 3.0.5
Please describe your problem.
The Error Occurs if new users wants to register at: http://tobit-forum.info/ucp.php?mode=register
[phpBB Debug] PHP Notice: in file /includes/ucp/ucp_register.php on line 488: mt_rand() expects parameter 1 to be long, string given
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3873: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3276)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3875: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3276)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3876: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3276)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 3877: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3276)
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[Mixstar]

Try re-uploading your includes/ucp folder from a fresh phpBB download via FTP.

[tomtom76]

Try re-uploading your includes/ucp folder from a fresh phpBB download via FTP.

i tried this but nothing hat changed

[Brf]

Reupload includes/constants.php

[tomtom76]

that did it!

many many thanks!

[sekarbright]

Thanks!!

I was also having the same problem and i Re upload the includes/constants.php

and works fine now...