Spirit bug

Cannot use spirit to summon my skeletal warriors/snipers. Game says I have no spirit but I habe a septer that gives my character 112 and has been allocated. I have tried removing the weapon and equpping unequippimg even switching hands to no avail. The skeletons are a big part of my build and basically makes fighting bosses very difficult and time consuming as theres is a massive loss in damage output for my build.