Random errors causing web page to crash

Hi,

Off and on I keep getting these errors (with a blank page inside wp-admin):

E_ERROR occured on line 223 in file: /wp-content/plugins/clearfy/libs/factory/core/includes/updates/repositories/class-factory-github.php. Cause: Uncaught Error: Wrong parameters for Exception([string $message [, long $code [, Throwable $previous = NULL]]]) in /wp-content/plugins/clearfy/libs/factory/core/includes/updates/repositories/class-factory-github.php:223
Stack trace:
#0 /wp-content/plugins/clearfy/libs/factory/core/includes/updates/repositories/class-factory-github.php(223): Exception->__construct()
#1 /wp-content/plugins/clearfy/libs/factory/core/includes/updates/repositories/class-factory-github.php(153): WBCR\Factory_446\Updates\Github_Repository->get_last_release_info()
#2 /wp-content/plugins/clearfy/libs/factory/core/includes/updates/class-factory-upgrader.php(252): WBCR\Factory_446\Updates\Github_Repository->get_last_version()
#3 /wp-content/plugins/clearfy/libs/factory/core/includes/updates/class-factory-upgrader.php(190): WBCR\Factory_446\Updates\Upgrader->ch

This happened just now trying to install a new plugin.