abandoned cart error

when abandoned cart try to send an email this error showed

error: strpos(): Argument #3 ($offset) must be of type int, bool given

public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Placeholder/PlaceholderProcessor.php(93): strpos() #1 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Placeholder/PlaceholderProcessor.php(53): WPDesk\ShopMagic\Workflow\Placeholder\PlaceholderProcessor->extract_parameters() #2 [internal function]: WPDesk\ShopMagic\Workflow\Placeholder\PlaceholderProcessor->WPDesk\ShopMagic\Workflow\Placeholder\{closure}() #3 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Placeholder/PlaceholderProcessor.php(41): preg_replace_callback() #4 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Action/Builtin/SendMail/SendRawHTMLMailAction.php(44): WPDesk\ShopMagic\Workflow\Placeholder\PlaceholderProcessor->process() #5 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Action/Builtin/SendMail/AbstractSendMailAction.php(122): WPDesk\ShopMagic\Workflow\Action\Builtin\SendMail\SendRawHTMLMailAction->get_message_content() #6 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/Action/Builtin/SendMail/AbstractSendMailAction.php(107): WPDesk\ShopMagic\Workflow\Action\Builtin\SendMail\AbstractSendMailAction->execute_internal() #7 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/ActionExecution/ExecuteNow.php(85): WPDesk\ShopMagic\Workflow\Action\Builtin\SendMail\AbstractSendMailAction->execute() #8 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/ActionExecution/QueueActionRunner.php(101): WPDesk\ShopMagic\Workflow\ActionExecution\ExecuteNow->execute() #9 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Workflow/ActionExecution/QueueActionRunner.php(110): WPDesk\ShopMagic\Workflow\ActionExecution\QueueActionRunner->WPDesk\ShopMagic\Workflow\ActionExecution\{closure}() #10 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/src/Components/HookProvider/HookTrait.php(112): WPDesk\ShopMagic\Workflow\ActionExecution\QueueActionRunner->run_action() #11 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/class-wp-hook.php(308): WPDesk\ShopMagic\Workflow\ActionExecution\QueueActionRunner->WPDesk\ShopMagic\Components\HookProvider\{closure}() #12 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #13 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/plugin.php(565): WP_Hook->do_action() #14 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/vendor/woocommerce/action-scheduler/classes/actions/ActionScheduler_Action.php(56): do_action_ref_array() #15 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/vendor/woocommerce/action-scheduler/classes/abstracts/ActionScheduler_Abstract_QueueRunner.php(88): ActionScheduler_Action->execute() #16 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/vendor/woocommerce/action-scheduler/classes/ActionScheduler_QueueRunner.php(169): ActionScheduler_Abstract_QueueRunner->process_action() #17 /home/u587934072/domains/bemonocromo.com/public_html/wp-content/plugins/shopmagic-for-woocommerce/vendor/woocommerce/action-scheduler/classes/ActionScheduler_QueueRunner.php(139): ActionScheduler_QueueRunner->do_batch() #18 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/class-wp-hook.php(308): ActionScheduler_QueueRunner->run() #19 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #20 /home/u587934072/domains/bemonocromo.com/public_html/wp-includes/plugin.php(565): WP_Hook->do_action() #21 /home/u587934072/domains/bemonocromo.com/public_html/wp-cron.php(188): do_action_ref_array() #22 {main}