How to correct this solder?
Make sure that any components that are attached to the pad are attached to the board in a mechanically sound manner.  A little dot of epoxy glue or hot glue should do.  You'll have to use your judgement.

Then make sure that the trace has enough copper to carry the current it used to.  Use your judgement -- usually this is repaired with a bit of bare wire, or copper foil.

If it won't move, and it won't burn up, you're done.