If the microstrip comes off from the substrate, how to paste it or how will you do?

I use the F4 substrate. When I test the power using a open-ended transmission line, the microstrip was taken off by the gravity of the transmission line. Oh, I just couldn't imagine how to fix it. Use some special glues or other methods? Any advice is welcome.

And how much you estimate is the gravity of the transmission line?

once the microstrip is taken off in any circumstances...
i feel it can not be fixed again and the board is damaged ... and the solution is that you will have to replace the board

PCB Repair Kits, Printed Circuit Board Repair, Printed Circuit Board Repair Kits

pick some copper tape about the same width as what fell off. It has sticky backing.

There are lot of adhesives to paste the stripline with Dielectric substrate. For ex: Rogers 3001.

Choose the adhesive according to your dielectric constant and application