Cannot activate plugin properly

Hi there!

I’ve just installed your plugin on my WordPress instance, and it’s now diplaying the following error everywhere. Also breaking the layout of the dashboard. It dissappears after plugin deactivation. After a quick research via duckduckgo it seems to be a problem with the code.

Strict Standards: Declaration of tfk_user::db_table() should be compatible with tzn_model::db_table($table = '') in /home/sirmacik/sites/lonky.prll.net/wp-content/plugins/taskfreak/inc/models/user.php on line 100

Strict Standards: Declaration of tfk_user::insert() should be compatible with tzn_model::insert($option = '') in /home/sirmacik/sites/lonky.prll.net/wp-content/plugins/taskfreak/inc/models/user.php on line 100

Strict Standards: Declaration of tfk_user::update() should be compatible with tzn_model::update($args = '') in /home/sirmacik/sites/lonky.prll.net/wp-content/plugins/taskfreak/inc/models/user.php on line 100

Strict Standards: Declaration of tfk_user::delete() should be compatible with tzn_model::delete($args = '') in /home/sirmacik/sites/lonky.prll.net/wp-content/plugins/taskfreak/inc/models/user.php on line 100

Strict Standards: Declaration of tfk_project::delete() should be compatible with tzn_model::delete($args = '') in /home/sirmacik/sites/lonky.prll.net/wp-content/plugins/taskfreak/inc/models/project.php on line 171

Cheers!
Marcin

https://www.ads-software.com/plugins/taskfreak/