can I submit in a new journal after submission in a predatory journal who force to pay in order to withdraw?
Could you provide some more details? In which country are you based? Where is the journal based? Is the journal WOS-listed?

Here are some basic orientations:


If you are certain that the given journal is a predatory journal, you can certainly retract the publication. Predatory journals are designed to maximise income and minimise expenditure. Accordingly, these journals are certainly not interested in a lawsuit (especially an international lawsuit). Emails are a matter of empty threats in that case.
If you are uncertain about the degree of predatory-ness, simply retract the publication based on the most relevant limition/flaw of your study. State explicitly that you feel that the quality of work does not fit their criteria of "high-quality, peer-reviewed science" (quote whatever the described on the webpage). Write the email in a manner, which puts them in "double bind" dilemma (https://en.wikipedia.org/wiki/Double_bind). Force them to either agree with the retraction at no cost, or to openly have to admit dishonesty regarding their "high-quality" peer-review process.
If it is just a low-quality but not predatory journal, be fair and go along with the submission this time and stay away from the journal in future.