Selling a file containing a trademark without permission – violation of intellectual property

Peace, Your Honor,
I posted on a site selling files and art objects.
A file I made that resembles a world-famous symbol, logo. This was done without the permission of the original intellectual property holders.
I recently received a message that my design for this logo infringes on the intellectual property of that company.
And that I have to remove it from the sales site. It's a file that costs around 3 NIS. I sold around 64 units.

Should I involve a legal entity to clarify this matter?

Is this theft and what action should be taken to correct the wrong?

Thank you for your response.

Thanks in advance.