Some hotkeys combination changed my typing

[Grigore I]

I probably tasted accidentally a hotkeys combination and now typing it’s a bit weird. Each typed symbol just replaces the one where is the underscore, and is not appending after it. How to change back to normal?
https://imgur.com/O1WwPLR

[Alan Kilborn]

Press and release the Insert key and you should be back to normal.
Status bar on the far right will show INS instead of OVR (insert versus overwrite mode).

[Grigore I]

Thank you!
Resolved!