Error code 38 on entering cash shop

OMG Thanks for figuring this out. I couldn't go into CS for like a month and now I finally can.

My magic number seems to be 86 items.

When I have
22 equip
14 use
17 etc
20 setup
13 cash
86 total
I can go in CS.

I tried getting one more equip I DC, one more use I DC, one more etc, one more setup, one more cash all result in DC.

I tried a bunch of different items as well. It doesn't seem to be a problem with any one item, just the number of items you got.

Edit: I didn't count the stuff I have equipped on the character, of which there are 35.