Hello,
Why are you overriding all of the templates? Are these all updated?
Overrides: buy2amazon/wc-vendors/dashboard/dashboard-notice.php
buy2amazon/wc-vendors/dashboard/dashboard.php
buy2amazon/wc-vendors/dashboard/nav.php
buy2amazon/wc-vendors/dashboard/order/order_details.php
buy2amazon/wc-vendors/dashboard/order/order_note.php
buy2amazon/wc-vendors/dashboard/order/order_note_form.php
buy2amazon/wc-vendors/dashboard/order/shipping-label.php
buy2amazon/wc-vendors/dashboard/order/tracking_number.php
buy2amazon/wc-vendors/dashboard/permission.php
buy2amazon/wc-vendors/dashboard/product-download.php
buy2amazon/wc-vendors/dashboard/product-edit.php
buy2amazon/wc-vendors/dashboard/product-simple.php
buy2amazon/wc-vendors/dashboard/quick-links.php
buy2amazon/wc-vendors/dashboard/reports/overview.php
buy2amazon/wc-vendors/dashboard/reports/reports.php
buy2amazon/wc-vendors/dashboard/shop_coupon-edit.php
buy2amazon/wc-vendors/dashboard/store-settings.php
buy2amazon/wc-vendors/front/pro-vendor-list.php
buy2amazon/wc-vendors/front/ratings/feedback-form.php
buy2amazon/wc-vendors/front/ratings/ratings-display-panel.php
buy2amazon/wc-vendors/front/shipping/shipping-panel.php
buy2amazon/wc-vendors/front/vendor-pending-notice.php
buy2amazon/wc-vendors/front/vendor-signup-form.php
buy2amazon/wc-vendors/store/store-header.php
buy2amazon/wc-vendors/store/store-ratings.php
buy2amazon/wc-vendors/store/store-vacation-message.php
Also, are you still using the BP WC Vendors plugin? or did you deactivate it?
Did you update to v1.4.3?