Time Machine greyed out external HD
Ihave been using time machine for the past couple years with both external drive. everything works as needed. But now as of today my time machine doesnt work. it starts to backup, then midway through it stops it doesn't complete. now I had deleted the "inprogress" file, restarted.. nothing.... then I look to see TM pref... I noticed that all my drives that are connected is located "exclude these items from backup. And they are greyed out so I cant "delete them from the list. and I am the admin for this computer. What do I do, how do i fix.. I checked you tube, & social everything is saying the same thing "delete inprogress" restart. I even formated one of the drives... and tried.. it went directly to the "exclude" these files and greyed out. PLEASE HELP Ihave 5 years worth of back ups