Hello, AnimalShop,
Thank you for contacting us and for using XStore.
Did you try to do the next steps to solve PCLZIP_ERR_BAD_FORMAT (-10) problem?
– unregister theme – https://prnt.sc/fIdNdLjNXJai
– re-enter purchase code and register the theme
– go to Dashboard > Updates > click Check again link https://prnt.sc/yygl09
Kind Regards,
8theme team