SIM card works on another phone but doesn't work on mine?

I found out something recently because I thought today that my SIM card is damaged / faulty, but when I put Huawei in my cell phone it works normally. But not on Blackview A60. To do this, I reinstalled my cell phone several times yesterday and today because of modifications. But why is no service found on Blackview A60 for Lebara?

Then the cell phone has some SIM lock or provider lock. Was it with a mobile phone contract?

With the mobile phone contract nothing at all. You can also insert the SIM card while the cell phone is on

If the phone is not unlocked, you can only use certain SIM cards.

I use a Lebara SIM card. My cell phone (Blackview A60) only has "flashing" on, nothing else

Shouldn't I hire APN for Lebara?

The same settings as in the working cell phone