I am facing a pretty strange problem. I have installed Drupal 7 on my site. Whenever I install a module and tries to access the module's configure page after enabling the module, it leads me to simply /admin/config page without showing the option for that particular module configuration.
sometimes when I do a clear cache the problem gets resolved and then I can access the module's config page. but sometime after installing a module, clear cache gives Internal Server Error 500 .. also I tried to flush the cache manually by making a php file into / directory with the following code:
<?php include_once './includes/bootstrap.inc'; drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL); drupal_flush_all_caches(); ?>
but this also gives Error 500.
When I disable the installed module, clear cache works as usual... please help me.