Intermittently but repeatedly occurs with the browser that it closes itself when pressing Enter key or tab key in the grid or textbox

Hello, This is a DHTML web developer. We’re currently having a problem intermittently but repeatedly occurs with the browser that it closes itself when pressing Enter key or tab key in the grid or textbox. This is not for all PC, also not for a PC that had the problem once before. I’ve observed it happens at least once a day, up to 10 times or more in a row.

Please let me know if there is any solution or anything to check for this problem.

Please reply to the email below.
wone3718@gmail.com
Thank you.

Unfortunaetly we have not observed such problem before.
Could you pleas,e provide a complete demo or a demo link of the problem application, exact steps to reproduce the problem, the PC configuration, using browser. I mean any details may help to identify the problem.