I'm trying to connect custom web java application with custom made local plugin in the Moodle through the use of Rest web service. However, as a response from Moodle I'm getting error message that doesn't give me idea what could be the problem. The error code is 503, and response I get is the following:
<html><head><title>Error - Moodle Config</title></head><body><table align="center"><tr><td style="color:#990000; text-align:center; font-size:large; border-width:1px; border-color:#000000; border-style:solid; border-radius: 20px; border-collapse: collapse; -moz-border-radius: 20px; padding: 15px"><p>Error: Get moodle setup information failed.</p>
<p>No setup information was found for </p>
<p>It is possible that the database is overloaded or otherwise not running properly.</p>
<p>The site administrator should also check that the database details have been correctly specified in config.php</p>
Moodle works fine so there is no problem with database as error indicates. Is there anything else that I should check?