Re: tiki-login.php leads to blank page
Do the followings:
1- Go to tiki/template_c directory and delete the 2-character-folder regarding to your language setting (for e.g. en)
2- Go to tiki/temp/cache and delete whatever you see there
3- Go to tiki/modules/cache and delte everything but index.php and README
Now, try logging in to the system and hopefully this time you can get into it!
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;){kind=link}