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Notice: Trying to access array offset on value of type bool in ./lib/dml/pgsql_native_moodle_database.php on line 314.
Stack trace:

line 314 of ./lib/dml/pgsql_native_moodle_database.php: PHP Notice thrown
line 266 of ./lib/dml/pgsql_native_moodle_database.php: call to pgsql_native_moodle_database->get_appname()
line 350 of ./lib/dmllib.php: call to pgsql_native_moodle_database->connect()
line 730 of ./lib/setup.php: call to setup_DB()
line 110 of /usr/share/moodle/sharedconfig_decd.php: call to require_once()
line 9 of /usr/share/moodle/configstub.php: call to require()
line 26 of ./course/index.php: call to require_once()