Lawnmower won't restart

Hello,

I have a Toro Flex-Force 60 Volt Model 20367 which looks remarkably similar to Toro Lawn Mower 20363 2019.

The problem I have is that when I drop in a freshly charged battery, close the safety lever to the handle, and push the blue start key, it starts up fine.

After use, I stop the mower by releasing the safety lever.

If I want to start it again, I can close the safety lever to the handle, but the lawnmower will not restart.

I have to remove the battery and drop it back in again.

Gets annoying to do this every time I wish to restart the lawnmower.

Does anyone have a solution to this problem?

Thanks.