By trying to finish Work Order, ERPNext doesnt return any reaction


I got a technical problem by creating a Work Order.

When I try to finish creating a Work Order (and with try to finish, I mean clicking on the “Submit”-Button), ERPNext doesnt return any reaction.

One Look at the bench terminal, there I can see, that there arent any GET or POST information. No reaction from server.

By clicking other buttons, I get POST or GET information from server.

Somebody knows, how can I fix the bug?

Installed Apps

ERPNext: v12.11.2 (version-12)

Frappe Framework: v12.9.1 (version-12)

thx and greets

Have now found a solution.

Open ERPNext via the Opera browser.