Self Employed SEP IRA and Traditional IRA Contributions

I'm 66, self employed using TT Home & Business. It showed I could contribute $21,880 to a Sep Ira and $19,795 to a traditional Ira. Fidelity says I can only contribute $8000 to a traditional Ira. I submitted my return via TT and now feel like a calculation error was encountered.  Please help if you can!  Thanks much...