516-01 error please help

I have applied for stimulis application. The question where it says can someone claim u as a dependant or spouse can be claimed as dependant i left it blank. Because nobody claimed me. As i am single . but my application was rejected because of this code it says someone claimed me as a dependenat.  But noone is suppsoed to. I tried to contact tubrotax and they told me to contact the irs but they are not accepting cause due to being understaffed i called the victims number for identity theft and same they are not accepting calls due to under staff. I am stuck and dont know what to do please help