Frequently asked questions
General questions
Installation
- Can I run Contao with PHP4?
- How can I use PHP5 with my web hosting plan?
- I can only use PHP5 with *.php5 files. Do you provide a special package?
- Can I run Contao without the mcrypt extension?
- I cannot install Contao because the URL is being rewritten.
- The install tool stops with a blank screen after entering the encryption key.
Using Contao
- I only see a blank page when I try to run Contao.
- I cannot login to the back end and I do not get an error message either.
- I cannot open the front end because the URL is being rewritten (error 404).
- I cannot log into Contao with Internet Explorer but only with Firefox.
- I can only see articles in Firefox but not in Internet Explorer.
- My pages or articles disappear after a while.
- I have lost my administrator password.
- I have lost the password for the install tool.
- My image thumbnails are not shown even after I have cleared the cache.
Extension Repository
- Why is my extension not listed in the Extension Repository?
- Why can I not delete a release or translation?
- It seems that my extension rating is not counted.
- My review is only visible when I am logged in.
- Why can I not delete or unpublish my review?
Troubleshooting
- Warning: Undefined index: main
- Warning: fopen() failed to open stream: Permission denied
- Parse error: syntax error, unexpected T_STRING, expecting T_FUNCTION or '}'
- Parse error: syntax error, unexpected '{' in contao/install.php
- Compilation failed: support for \P, \p, and \X has not been compiled
- Fatal error: Cannot create file
- Fatal error: Cannot access protected property
- Fatal error: The host address does not match the referer host address
- Fatal error: Uncaught exception with message "Could not connect to database"
- Fatal error: You have an error in your SQL syntax near 'DEFAULT CHARSET=utf8'
- Fatal error: Query error: Field 'xxx' doesn't have a default value
- Fatal error: Call to undefined function mb_eregi() / mb_strtolower()