bug cant delete single occurrence of rec event

i created recursive event and than edited single instance of it. now if i try to delete that instance its not deleting and event color turns to red. what is the issue. when i check logs its says error deleting event

If you are using connector on server side - try to enable server side logs and provide their content for the problematic operation

docs.dhtmlx.com/doku.php?id=dhtm … tor:errors

where to write $conn->enable_log(“path”); cuz so many php files

<?xml version='1.0' ?>

returned by to_xml() function

issue solved

Actual problem was column name in event_rec.php delete query is written in static mode and where clause in query uses id = ‘some value’ but my column name is eid. thanks