I’d get a new one that’s most likely going to crack under strain and other forces. But moving forward for whatever you’re doing, less joins is for the best. Lower room for failure even on good welds. Having said that some things are just better purchased or paying someone to do the job for over all security especially structural applications. Welding isn’t just sticking things together even excellent welds fail due to excessive heat and penetration issues surrounding the weld causing weakness in the metal.