Claim ID.
	 *
	 * @return int[]
	 */
	public function find_actions_by_claim_id( $claim_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;

		$sql = "SELECT action_id FROM {$wpdb->actionscheduler_actions} WHERE claim_id=%d";
		$sql = $wpdb->prepare( $sql, $claim_id );

		$action_ids = $wpdb->get_col( $sql );

		return array_map( 'intval', $action_ids );
	}

	/**
	 * Release actions from a claim and delete the claim.
	 *
	 * @param ActionScheduler_ActionClaim $claim Claim object.
	 */
	public function release_claim( ActionScheduler_ActionClaim $claim ) {
		/** @var \wpdb $wpdb */
		global $wpdb;
		$wpdb->update( $wpdb->actionscheduler_actions, [ 'claim_id' => 0 ], [ 'claim_id' => $claim->get_id() ], [ '%d' ], [ '%d' ] );
		$wpdb->delete( $wpdb->actionscheduler_claims, [ 'claim_id' => $claim->get_id() ], [ '%d' ] );
	}

	/**
	 * Remove the claim from an action.
	 *
	 * @param int $action_id Action ID.
	 *
	 * @return void
	 */
	public function unclaim_action( $action_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;
		$wpdb->update(
			$wpdb->actionscheduler_actions,
			[ 'claim_id' => 0 ],
			[ 'action_id' => $action_id ],
			[ '%s' ],
			[ '%d' ]
		);
	}

	/**
	 * Mark an action as failed.
	 *
	 * @param int $action_id Action ID.
	 */
	public function mark_failure( $action_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;
		$updated = $wpdb->update(
			$wpdb->actionscheduler_actions,
			[ 'status' => self::STATUS_FAILED ],
			[ 'action_id' => $action_id ],
			[ '%s' ],
			[ '%d' ]
		);
		if ( empty( $updated ) ) {
			throw new \InvalidArgumentException( sprintf( __( 'Unidentified action %s', 'woocommerce' ), $action_id ) );
		}
	}

	/**
	 * Add execution message to action log.
	 *
	 * @param int $action_id Action ID.
	 *
	 * @return void
	 */
	public function log_execution( $action_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;

		$sql = "UPDATE {$wpdb->actionscheduler_actions} SET attempts = attempts+1, status=%s, last_attempt_gmt = %s, last_attempt_local = %s WHERE action_id = %d";
		$sql = $wpdb->prepare( $sql, self::STATUS_RUNNING, current_time( 'mysql', true ), current_time( 'mysql' ), $action_id );
		$wpdb->query( $sql );
	}

	/**
	 * Mark an action as complete.
	 *
	 * @param int $action_id Action ID.
	 *
	 * @return void
	 */
	public function mark_complete( $action_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;
		$updated = $wpdb->update(
			$wpdb->actionscheduler_actions,
			[
				'status'             => self::STATUS_COMPLETE,
				'last_attempt_gmt'   => current_time( 'mysql', true ),
				'last_attempt_local' => current_time( 'mysql' ),
			],
			[ 'action_id' => $action_id ],
			[ '%s' ],
			[ '%d' ]
		);
		if ( empty( $updated ) ) {
			throw new \InvalidArgumentException( sprintf( __( 'Unidentified action %s', 'woocommerce' ), $action_id ) );
		}
	}

	/**
	 * Get an action's status.
	 *
	 * @param int $action_id Action ID.
	 *
	 * @return string
	 */
	public function get_status( $action_id ) {
		/** @var \wpdb $wpdb */
		global $wpdb;
		$sql    = "SELECT status FROM {$wpdb->actionscheduler_actions} WHERE action_id=%d";
		$sql    = $wpdb->prepare( $sql, $action_id );
		$status = $wpdb->get_var( $sql );

		if ( $status === null ) {
			throw new \InvalidArgumentException( __( 'Invalid action ID. No status found.', 'woocommerce' ) );
		} elseif ( empty( $status ) ) {
			throw new \RuntimeException( __( 'Unknown status found for action.', 'woocommerce' ) );
		} else {
			return $status;
		}
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'ActionScheduler_DBStore' not found in /home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler_Store.php:341
Stack trace:
#0 /home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler.php(25): ActionScheduler_Store::instance()
#1 /home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler.php(145): ActionScheduler::store()
#2 /home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/action-scheduler.php(44): ActionScheduler::init('/home/payon/pub...')
#3 /home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/classes/ActionScheduler_Versions.php(59): action_scheduler_initialize_3_dot_1_dot_6()
#4 /home/payon/public_html/wp-includes/class-wp-hook.php(306): ActionScheduler_Versions::initialize_latest_version()
#5 /home/payon/public_html/wp-includes/class-wp-hook.php(332): WP_ in <b>/home/payon/public_html/wp-content/plugins/woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler_Store.php</b> on line <b>341</b><br />