Cant enable Woocommerce

Stopped working on update. Tried disablin and reenabling, erasing folder, downgrading, uninstalling every other plugin and reenable one by one. Keeps showing two errors, alternately

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 1310777 bytes) in /home/mysite/public_html/wp-includes/functions.php on line 435

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 11191927 bytes) in /home/mysite/public_html/wp-includes/wp-db.php on line 1171

Besides, in debug.log, shows these errors

WordPress database error Duplicate key name ‘location_type_code’ for query ALTER TABLE wp_woocommerce_tax_rate_locations ADD KEY location_type_code (location_type(40),location_code(90)) made by do_action(‘activate_woocommerce/woocommerce.php’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, WC_Install::install, WC_Install::create_tables, dbDelta

WordPress database error Duplicate key name ‘location_type_code’ for query ALTER TABLE wp_woocommerce_tax_rate_locations ADD KEY location_type_code (location_type(40),location_code(90)) made by do_action(‘activate_woocommerce/woocommerce.php’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, WC_Install::install, WC_Install::create_tables, dbDelta

WordPress database error Duplicate key name ‘location_type_code’ for query ALTER TABLE wp_woocommerce_shipping_zone_locations ADD KEY location_type_code (location_type(40),location_code(90)) made by do_action(‘activate_woocommerce/woocommerce.php’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, WC_Install::install, WC_Install::create_tables, dbDelta