Left employer with 401(k) plan in March 2021, now self employed but not eligible to contribute to IRA

Previous employer W2 included just over $1,000 in deferred income for 401(k) contribution.  Left that employer for self-employment.  When I attempt to elect additional IRA contributions to reduce income, it states that because our MAGI is over the limit of $125,000 while being covered by a retirement plan at work.  Again, I'm self-employed, so I am not covered by a retirement plan at work (although wife is).  Am I missing something?