It's a tiny bubble in between the 2 18mm sheets of glass, it holds water but I am going to reseal it but I wanna know do I have to completely rebuild it??

that second photo is the bottom section of that same side, its a thin bubble line. the rest of corners have the same thing. it doesnt look like anything serious now but i dont want anything happening to my family. i was thinking of buying some aluminum corner guards and applying some PL because the corners are getting covered by the stand and canopy.
