remove vim plugin in android studio and then restart android studio

My cursor in android studio(chipmunk) is changing itself from writing mode to overwrite mode whenever I select texts. And my ctrl + C and ctrl + V is also not working, I haven’t changed any settings up to my knowledge.

[1][This picture depicts the cursor in write mode]

[1]: https://i.stack.imgur.com/7Ph1k.png

[2][This picture depicts the cursor changing into overwrite mode itself after I select some texts]

[2]: https://i.stack.imgur.com/V0s61.png

Can anyone help me out solving this?