Changes do not stick

All the changes I make to the plugin do not stick. I setup brute force protection, with the API, save it, leave the page, come back, and local brute force is unchecked again. This is the same for all the other settings, such as change the login area and away mode. I’ve deleted and resinstalled the plugin and also tried to do the activations with all other plugins disabled.

I have this installed on wordpress multisite.

https://www.ads-software.com/plugins/better-wp-security/