Hello, Vitalii,
Thank you for contacting us and for using XStore.
Please follow next steps:
1/ Update the XStore theme to version v9.1.4 and the XStore core plugin to version 5.1.4.
2/ Go to the WordPress admin panel, XStore -> Dashboard -> Patcher, and install patch #9145196 as shown in the screenshot https://prnt.sc/gL329FiHbJSA
3/ Go to the WordPress admin panel, Appearance -> Widgets, and enable the option “Use select2 instead of the usual select” as shown in the screenshot https://prnt.sc/KxpCMxndutvp
4/ Clear cache and check the result.
Kind Regards,
8theme team