When trying to register a new user, my users get a blank screen and no e-mail activation request. I have had the site up and running for a few weeks with no trouble until the past few days.

I am running XOOPS 2.0.10 under Windows 2003, Apache 2.0, PHP 4.3.4, and mySQL 4.1.9.

I have the following modules installed:

Polls v. 1
XCGallery v. 1.1
xYP4ALL v. 1.57
DMS (Document Management System) v. 0.99
Weblog v. 1.1
Contact Us v. 1
C-Jay Content v. 3
Content (Links & More) v. 0.41
XOOPS Protector v. 2.4
XT Temas v. 1
Memberlist v. 1
Agenda-X v. 2.2
Doc Manager (Documentation center) v. 1.1
XOOPS Stats v. 0.45
Uservisit v. 2.2
SNX Weather v. 1.11
Blocks Admin v. 0.28
Web Stats v. 2.1
MS Weather v. 1.4


With PHP Debug mode enabled, I get the following information (and blank screen) after trying to register.


Notice [PHP]: Constant XOOPS_SIDEBLOCK_LEFT already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 44
Notice [PHP]: Constant XOOPS_SIDEBLOCK_RIGHT already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 45
Notice [PHP]: Constant XOOPS_SIDEBLOCK_BOTH already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 46
Notice [PHP]: Constant XOOPS_CENTERBLOCK_LEFT already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 47
Notice [PHP]: Constant XOOPS_CENTERBLOCK_RIGHT already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 48
Notice [PHP]: Constant XOOPS_CENTERBLOCK_CENTER already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 49
Notice [PHP]: Constant XOOPS_CENTERBLOCK_ALL already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 50
Notice [PHP]: Constant XOOPS_BLOCK_INVISIBLE already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 51
Notice [PHP]: Constant XOOPS_BLOCK_VISIBLE already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 52
Notice [PHP]: Constant XOOPS_MATCH_START already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 53
Notice [PHP]: Constant XOOPS_MATCH_END already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 54
Notice [PHP]: Constant XOOPS_MATCH_EQUAL already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 55
Notice [PHP]: Constant XOOPS_MATCH_CONTAIN already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 56
Notice [PHP]: Constant SMARTY_DIR already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 57
Notice [PHP]: Constant XOOPS_CACHE_PATH already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 58
Notice [PHP]: Constant XOOPS_UPLOAD_PATH already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 59
Notice [PHP]: Constant XOOPS_THEME_PATH already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 60
Notice [PHP]: Constant XOOPS_COMPILE_PATH already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 61
Notice [PHP]: Constant XOOPS_THEME_URL already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 62
Notice [PHP]: Constant XOOPS_UPLOAD_URL already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 63
Notice [PHP]: Constant XOOPS_DB_CHKREF already defined in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 69
Notice [PHP]: A session had already been started - ignoring session_start() in file L:\WebSite\rlalibrary\apache\www\staffintranet\include\common.php line 177