Reproduction steps:

1. Create an empty tracker
2. Make sure the tracker will be instantiated when creating a new project
3. Add a static select box to this tracker with some value
4. Create a tracker report, add the list field as one of the criteria and select one the value
5. Save the report
6. Go back to the field administration and remove the value you selected in the report from the field
7. Create a new project from your current project

Project creation trace:

Warning: Undefined array key 3686 in /usr/share/tuleap/plugins/tracker/include/Tracker/Report/dao/ReportCriteriaDao.php on line 102
Fatal error: Uncaught TypeError: Tuleap\Tracker\Report\dao\ReportCriteriaDao::getValueFromRow(): Return value must be of type string, null returned in /usr/share/tuleap/plugins/tracker/include/Tracker/Report/dao/ReportCriteriaDao.php on line 102

If the document generation plugin is enabled it will also break when accessing the report:

Tracker_FormElement_InvalidFieldValueException: in /usr/share/tuleap/plugins/tracker/include/Tracker/FormElement/Tracker_FormElement_Field_List_Bind_Static.php on line 22

The generated tracker structure is also invalid because it references values that does not exist.