Backup issue php_isapi

[Robin Cauwenbergh]

We have one domain that causes problem for a backup.

The warning/error we get is:

<?xml version="1.0" encoding="utf-8"?>
<execution-result status="warnings">
  <object name="domainname.net" type="domain">
    <message code="InformationalException" severity="error">Cannot dump domain hosting settings</message>
  </object>
  <object name="backup" type="backupowner">
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
    <message code="InformationalException" severity="error">Could no backup template item 'php_isapi' with value ''</message>
  </object>
</execution-result>

has anyone a solution how to solve this?