Hello,

Trying to get kolab calendar plugin going with roundcube 1.3.9 and getting the following error, in the browser it's an error 500 in the log here's what I have, is there a fix?

Thanks. Dave.

#cat errors [05-Aug-2019 17:45:54 America/New_York] PHP Fatal error: Uncaught Error: Call to protected method rcmail_output_html::search_form() from context 'calendar_ui' in /usr/local/www/roundcube/plugins/calendar/lib/calendar_ui.php:795 Stack trace: #0 /usr/local/www/roundcube/program/include/rcmail_output_html.php(1145): calendar_ui->resources_search_form(Array) #1 [internal function]: rcmail_output_html->xml_command(Array) #2 /usr/local/www/roundcube/program/include/rcmail_output_html.php(1013): preg_replace_callback('/<roundcube:([-...', Array, '<roundcube:obje...') #3 /usr/local/www/roundcube/program/include/rcmail_output_html.php(634): rcmail_output_html->parse_xml('<roundcube:obje...') #4 /usr/local/www/roundcube/program/include/rcmail_output_html.php(488): rcmail_output_html->parse('calendar', false) #5 /usr/local/www/roundcube/plugins/calendar/calendar.php(333): rcmail_output_html->send('calendar.calend...') #6 /usr/local/www/roundcube/program/lib/Roundcube/rcube_plugin_api.php(493): calendar->calendar_view() #7 /usr/local/www/roundcube/index.php(295): rcube_plugin_ in /usr/local/www/roundcube/plugins/calendar/lib/calendar_ui.php on line 795