Checking your MantisBT installation...

PHP
display_errors php.ini directive is disabled
For security reasons this directive should be disabled on all production and Internet facing servers.
WARN
post_max_size php.ini directive is at least equal to the upload_max_size directive
The current value of the post_max_size directive is 8388608 bytes. This value needs to be at least equal to the upload_max_size directive value of 10485760 bytes.
FAIL
Some tests failed. Please review, correct them and run the checks again before using MantisBT.
For security reasons, you should delete (or at least restrict access to) the admin directory. Refer to the MantisBT Admin Guide for further details.