Hello,
As for the categories, please deactivate all the plugins not related to the theme and switch the parent theme, check the issue, If the problem has gone, activate the plugins one by one, checking the issue to detect which one causes the problem.
As for accordion:
Try to add the following code snippet to the Custom JS area on the document ready in Theme Settings to fix this issue.
jQuery('.wc-tabs-wrapper .woodmart-accordion-title').click(function (e) {
e.stopPropagation();
e.preventDefault();
var $this = jQuery(this),
$panel = $this.siblings('.woocommerce-Tabs-panel');
if ($this.hasClass('active')) {
$this.removeClass('active');
$panel.stop().slideUp(300);
} else {
$this.addClass('active');
$panel.stop().slideDown(300);
}
jQuery(window).resize();
jQuery(document).trigger('wood-images-loaded');
});
Best Regards