Lost base Spirit

Hello, I'm a level 91 Witch. I was running a minion-based build but recently switched to a demon form build. However, I noticed that my base Spirit has dropped to just 30, even though I had collected all the Spirit bonuses during the campaign.

I read in a post that toggling my minion skill on and off might fix the issue, but it didn’t work. I also tried switching back to my minion build, but now I have fewer minions available than before.

I’m not sure what’s causing this or how to restore my Spirit. Any suggestions?