Just been doing some browsing in the Laserfiche Server event viewer logs today and saw the below error logged several times.

Log Name:      Laserfiche-ContentRepository-Service/Admin
Source:        Laserfiche-ContentRepository-Service
Date:          12/17/2025 9:28:08 AM
Event ID:      144
Task Category: None
Level:         Error
Keywords:      
User:          XXXX
Computer:      XXXX
Description:
LFS received an unrecognized or unexpected error from LFDS. Service Call=LookupNestedGroupMembership(database=XXXX,providerName=,sidOrName=XXXX,token=94h10bPi551o2d7i8M7Qymge/YOfDbLF/hDfAu8P4Uo=); LFDS error code=0
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Laserfiche-ContentRepository-Service" Guid="{82FC23FE-4B0A-435C-82E6-01C7077098AF}" />
    <EventID>144</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x4000000000000000</Keywords>
    <TimeCreated SystemTime="2025-12-17T16:28:08.194066300Z" />
    <EventRecordID>5092625</EventRecordID>
    <Correlation />
    <Execution ProcessID="3264" ThreadID="5820" />
    <Channel>Laserfiche-ContentRepository-Service/Admin</Channel>
    <Computer>XXXX</Computer>
    <Security UserID="XXXX" />
  </System>
  <EventData>
    <Data Name="ServiceCalled">LookupNestedGroupMembership(database=XXXX,providerName=,sidOrName=XXXX,token=94h10bPi551o2d7i8M7Qymge/YOfDbLF/hDfAu8P4Uo=)</Data>
    <Data Name="LFDSErrorCode">0</Data>
  </EventData>
</Event>

Looking in the LFDS event viewer logs I found the below error at the same time.

Log Name:      Laserfiche-Directory Service-Server/Operational
Source:        Laserfiche-Directory Service-Server
Date:          12/17/2025 9:28:08 AM
Event ID:      28
Task Category: None
Level:         Error
Keywords:      
User:          XXXX
Computer:      XXXX
Description:
ExtendedErrorCode: 8335
ExtendedErrorMessage: 0000208F: LdapErr: DSID-0C090D4B, comment: Error processing name, data 0, v4f7c
Extra Information: System.DirectoryServices.DirectoryServicesCOMException (0x80072032): An invalid dn syntax has been specified.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache(String[] propertyNames)
   at Laserfiche.LicenseManager.Utils.QueryADGroupMembership(String dn, IdentityProviderSpecs specs, Dictionary`2 groups)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsForAD(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sid)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsFromDirectory(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sidOrName)
   at Laserfiche.LicenseManager.LicenseManagerService.LookupNestedGroupMembership(LicenseManagerServiceCallArgs _args)
   at Laserfiche.LicenseManager.LicenseManagerService.DispatchFunction(LicenseManagerServiceCall func, LicenseManagerServiceCallArgs args)

Type:
System.DirectoryServices.DirectoryServicesCOMException

Stack Trace:
   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache(String[] propertyNames)
   at Laserfiche.LicenseManager.Utils.QueryADGroupMembership(String dn, IdentityProviderSpecs specs, Dictionary`2 groups)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsForAD(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sid)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsFromDirectory(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sidOrName)
   at Laserfiche.LicenseManager.LicenseManagerService.LookupNestedGroupMembership(LicenseManagerServiceCallArgs _args)
   at Laserfiche.LicenseManager.LicenseManagerService.DispatchFunction(LicenseManagerServiceCall func, LicenseManagerServiceCallArgs args)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Laserfiche-Directory Service-Server" Guid="{8f289ef0-f5cb-445b-87ab-2d62c3d1aa63}" />
    <EventID>28</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x2000000000000000</Keywords>
    <TimeCreated SystemTime="2025-12-17T16:28:08.1889454Z" />
    <EventRecordID>842520</EventRecordID>
    <Correlation />
    <Execution ProcessID="3520" ThreadID="6872" />
    <Channel>Laserfiche-Directory Service-Server/Operational</Channel>
    <Computer>XXXX</Computer>
    <Security UserID="XXXX" />
  </System>
  <EventData>
    <Data Name="ExtendedErrorCode">8335</Data>
    <Data Name="ExtendedErrorMessage">0000208F: LdapErr: DSID-0C090D4B, comment: Error processing name, data 0, v4f7c</Data>
    <Data Name="Stack Trace">System.DirectoryServices.DirectoryServicesCOMException (0x80072032): An invalid dn syntax has been specified.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache(String[] propertyNames)
   at Laserfiche.LicenseManager.Utils.QueryADGroupMembership(String dn, IdentityProviderSpecs specs, Dictionary`2 groups)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsForAD(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sid)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsFromDirectory(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sidOrName)
   at Laserfiche.LicenseManager.LicenseManagerService.LookupNestedGroupMembership(LicenseManagerServiceCallArgs _args)
   at Laserfiche.LicenseManager.LicenseManagerService.DispatchFunction(LicenseManagerServiceCall func, LicenseManagerServiceCallArgs args)

Type:
System.DirectoryServices.DirectoryServicesCOMException

Stack Trace:
   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache(String[] propertyNames)
   at Laserfiche.LicenseManager.Utils.QueryADGroupMembership(String dn, IdentityProviderSpecs specs, Dictionary`2 groups)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsForAD(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sid)
   at Laserfiche.LicenseManager.LicenseManagerService.GetGroupsFromDirectory(LicenseCacheEntry lce, IdentityProviderSpecs specs, String sidOrName)
   at Laserfiche.LicenseManager.LicenseManagerService.LookupNestedGroupMembership(LicenseManagerServiceCallArgs _args)
   at Laserfiche.LicenseManager.LicenseManagerService.DispatchFunction(LicenseManagerServiceCall func, LicenseManagerServiceCallArgs args)</Data>
  </EventData>
</Event>

Any idea how to fix this error?

Running LFDS 12.0.2510.261 and Server 12.0.2.343.