Memory allocation error during installation

I downloaded the opigno LMS and was installing it, when I encountered a mempory allocation error as follows: An AJAX HTTP error occurred. HTTP Result Code: 200 Debugging information follows. Path: [http://mymockinterview.com/opigno_lms-7.x-1.15/install.php?profile=opig… StatusText:] OK ResponseText: Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 184320 bytes) in /home/mymockin/public_html/opigno_lms_7.x-.15/profiles/opigno_lms/modules/features/opigno_features_field_settings/ opigno_features_field_settings.features.defaultconfig.inc on line 3729 Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 65552 bytes) in /home/mymockin/public_html/opigno_lms-7.x-1.15/includes/bootstrap.inc on line 1553 When I look into *features.defaultconfig.inc on line 3729 and the bootstrap.inc on line 1553, I see there is some array or map access. E.g on line 3729 of first file: 'membership_type' => 'og_membership_type_default', 'sort' => array( 'type' => 'none', ), However, it look like the real issue if some variable setting. Any idea how the problem could be fixed.