Ошибка в логах

Добрый день! Подскажите пожалуйста в чем может быть причина этих ошибок?

[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: array_sum() expects parameter 1 to be array, null given
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: Division by zero
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: array_sum() expects parameter 1 to be array, null given
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: Division by zero
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: array_sum() expects parameter 1 to be array, null given
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: Division by zero
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: array_sum() expects parameter 1 to be array, null given
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: Division by zero
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: array_sum() expects parameter 1 to be array, null given
[2019-05-14 19:56:30] (ERROR @ /home/s13997/www/core/cache/includes/elements/modsnippet/84.include.cache.php : 11) PHP warning: Division by zero

и такие постоянно лезут без остановки.