Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, bool given in /u01/home/maths/public_html/lib/mouse.php:135 Stack trace: #0 /u01/home/maths/public_html/lib/mouse.php(3): Mouse::register('/:topic;[a-zA-Z...', Object(Closure), 'GET') #1 /u01/home/maths/public_html/index.php(50): get('/:topic;[a-zA-Z...', Object(Closure)) #2 {main} thrown in /u01/home/maths/public_html/lib/mouse.php on line 135