My cursor must be crazy :(

Hello there,

My cursor is now a thick line like this. My cursor is flashing fast and I can not write anything. I can not solve this problem and I can not find a solution on the internet. This has happened to himself and he starts to do it in 30 minutes after he turns on the pycharm, and then he gets normal on his own. I do it every day and I'm really bored.
I changed the pycharm theme, could it be the theme? I downloaded the theme with "color-themes.com".

Thanks.