Meant to do a backdoor ROTH conversion

In April of 2024 I meant to do a $2000 backdoor ROTH conversion, but I mistakenly put it directly into a ROTH.  I just realized what I did, so I called Vanguard and they recharacterized  the $2000 contribution plus $300 in earnings to my Traditional IRA which had a 0.00 balance at the start of the year.  That would be fine except I now have $300 pretax money in my traditional IRA and I'm not eligible to contribute pretax money.   What can I do.

 

Thanks

Tom