Hello! I have installed a screen lock application but my problem is that its not working...

[AC Question]

So the detail is that I have installed a screen lock application from play store.. After installation I have enabled that application's screen lock and disabled my device lock..I have enabled notification access, usage access, accessibility and android device administration but still that app is not working..
Initially I thought that there is a bug with that app but I have installed almost 5to 7 apps but none of them works...
May be u think that my phone don't support these kinds of app its not like that cuz I have installed the same app three months back and it was working absolutely fine..
Now my concerned is that I have done something wrong in the setting so can u plz suggest me what I should do now??
Hope I have cleared my situation

 

[Morty2264]

Welcome to the forums! What kind of phone are you using? Is it running the latest software update? Lastly, have you tried restarting your device to see if that fixes anything? When I update my theme launcher, I am required to restart so any last-minute malfunctions are corrected. Keep us posted!