u/Able-Advisor4562

got a canon sureshot secondhand recently and just got my first film roll developed -- came out completely blank. doing some googling and can’t see through the actual lens at all when taking anything (opened camera up without film in to look as said on another reddit page), takes fine and rolls on no problem so unsure what’s happened. can see no problem through view finder. is this fixable? am i doomed? xxxx