Lost dps

Hello,

All of a sudden my character has lost all dps, I can’t kill anything!

For example the dps on my tempest bell is now 167. I’m a level 60 monk and I’ve just gone back to previous acts to mop up bosses I might have missed first time round.

I haven’t removed any equipped items or changed anything on the passive tree, I’ve changed nothing!

I’ve logged out and reset game but my problem persists.

Any help would be appreciated!

Thanks