A warrant for arrest means that the first time a policeman identifies her, she will be arrested. Then she will be in jail and it will be much harder to pay off the $60, because she will not be able to do anything while she is in jail. She will have to beg friends to loan her money and help her out. If she tries to renew her drivers license, they will call the police, and arrest her on the spot. She needs to do everything she can to pay the debt and take care of the problem now, while she is still out of jail.
She can stay out of jail if she hires a lawyer, and the lawyer states that she will appear in court. (The courts assume that you intend to appear, if you hired a lawyer.) But already, that is expensive.
Does she know the credit card owner. If she does, her best bet is to pay him the $60 and beg him to drop his complaint. If she makes payment, it has to be in a manner that she can prove, like by a money order, keep the 2nd half of the money order which has the money order number, and include a letter saying she is paying for her use of the credit card. Otherwise, the credit card owner can say he was never paid, or that the payment was for something else. (This assumes that she is guilty, and they can prove it. Because this payment and letter is admitting guilt, and she should not do this if she is innocent.)
A court date has already been set. If she does not appear, then her situation gets worse because of her \"failure to appear.\" If she appears without making payment, and without an attorney, she will probably be arrested in the courtroom.
The warrant for her arrest will show up in a background check that included a check of arrest warrants. Walmart is a huge company, and they probably check that as part of their standard hiring procedure. No company can afford to hire someone that cannot come to work because they will be in jail in a few days.
She can learn
how to do a free background check
Then she will know what shows up on the background check.
(I am not an attorney, and this is not legal advice.)