It will not affect the application, but there will be subsequent troubles.

The trademark process now includes trademark submission, trademark payment, and trademark acceptance. Spelling errors will not affect the application process, but you will have to reapply if you want to make changes after registering.

After submitting a trademark application, if an error is discovered and the fee has not been paid, you can resubmit a new application without paying the fee. If a spelling error is discovered after acceptance, the trademark application can be withdrawn.