addSlashes error

Problem/Motivation

I am seeing this error appearing in the logs after accessing this path. /burndown/project

The person getting the error does not have access to that rout so I am guessing it is coming from the breadcrumb being built for a path

Deprecated function: addcslashes(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\Core\Database\Connection->escapeLike() (line 1089 of /web/core/lib/Drupal/Core/Database/Connection.php)
#0 /web/core/includes/bootstrap.inc(104): _drupal_error_handler_real()
#1 [internal function]: _drupal_error_handler()
#2 /web/core/lib/Drupal/Core/Database/Connection.php(1089): addcslashes()
#3 /web/core/lib/Drupal/Core/Database/Query/Select.php(428): Drupal\Core\Database\Connection->escapeLike()
#4 /web/core/lib/Drupal/Core/Entity/Query/Sql/Condition.php(128): Drupal\Core\Database\Query\Select->escapeLike()
#5 /web/core/lib/Drupal/Core/Entity/Query/Sql/Condition.php(73): Drupal\Core\Entity\Query\Sql\Condition::translateCondition()
#6 /web/core/lib/Drupal/Core/Entity/Query/Sql/Query.php(193): Drupal\Core\Entity\Query\Sql\Condition->compile()
#7 /web/core/lib/Drupal/Core/Entity/Query/Sql/Query.php(82): Drupal\Core\Entity\Query\Sql\Query->compile()
#8/web/modules/contrib/burndown/src/Entity/Project.php(95): Drupal\Core\Entity\Query\Sql\Query->execute()
#9 /web/modules/contrib/burndown/src/Controller/BoardController.php(85): Drupal\burndown\Entity\Project::loadFromShortcode()

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes