Check config files
main.inc.php: OK
db.inc.php: OK
Check if directories are writable
Roundcube may need to write/save files into these directories
temp/: OK
logs/: OK
Check DB config
PHP Error Message
Fatal error: Undefined class constant 'MYSQL_ATTR_FOUND_ROWS' in /home/a3361728/public_html/mail/program/lib/Roundcube/rcube_db_mysql.php on line 134