Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /usr/home/topposition/domains/polandbikeforum.pl/public_html/forum/inc/functions_calendar.php:133
Stack trace:
#0 /usr/home/topposition/domains/polandbikeforum.pl/public_html/forum/calendar.php(2265): build_mini_calendar(Array, '5', '2019', Array)
#1 {main}
  thrown in /usr/home/topposition/domains/polandbikeforum.pl/public_html/forum/inc/functions_calendar.php on line 133