EOS is End of Stroke .. it's the secondary hold coil switch that disconnects the main coil and switches in the higher ohm less amperage hold coil to let you keep the flipper in the up position as long as you continue to hold the flipper button.

Check/clean your switch contacts on your flippers.

Flipper coils are the first ones to fail because of their usage. Replace both with new. I know it's an expense but you won't be sorry. Use the vendor of your choice. I always order extra coils and keep them and flipper rebuild kit parts in my private stock for my machines. After all .. you gotta pay the same shipping charge for one part or ten.

Most likely one or it's diode is failing and now you've blown the fuse. Check under the playfield as the flipper fuse(s) are most often there.