How to clear a locked transaction?

I am trying to delete a database within my SAAS account on the server.

I am using bDelDB = HDeleteDatabase("DBDelete") and the return code is true. I also confirm that the database was deleted.

I then issue SaaSAdminCreateClientDatabase(S, C) which creates a new database so at this stage everything is as normal. But something has changed elsewhere because now when I check errorinfo() I get this:

A lock error occurred on the previous 'HDeleteDatabase' function and this error has not been processed.

But what is strange is that whilst the error occurs (but not trapped) the database has been physically created.

What do I have to do to get round this issue as whatever I try fails.

Thx

BTW here is the FULL error message if it helps:

WL call:
Process of 'Local Procedure SendFilesToCloud' (WIN_WaitForProcess.PROCEDURE.SendFilesToCloud), line 67, thread 0
'SaaSAdminCreateClientDatabase' function, syntax 0

What happened?
What happened?
Unable to create the client database. Message returned by the database: WL call:
Process of 'Procédure globale _bAdminRecreerBaseClient_HFCS' (ServeurSaaS._bAdminRecreerBaseClient_HFCS), line 170, thread 0
'HDeleteDatabase' function, syntax 1

What happened?
A lock error occurred on the previous 'HDeleteDatabase' function and this error has not been processed.
Function called in 'Procédure globale _bAdminRecreerBaseClient_HFCS' process, line 170.
Error returned by <VPS67:4900> server:
Unable to delete <EM_RPMayland> database: database currently used by <Admin> from <wdtst.exe ( ConvertData )> application on John-PC.lan computer.

Error code: 70100
Level: non-fatal error
WD55 error code: 100

Dump of the error of 'WDHFSRV64.DLL' module (21.0.76.2).
Identifier of detailed information (.err): 73246
Debugging information:
IEWDHFSRV=139.3
Module=<WDHFSRV>
Version=<21.0.76.2>
Fonction (7,277)
Additional Information:
EIT_TYPE_WDFILE : <7>
EIT_IDCODE : <458752>
EIT_SERVEURCS : <VPS67:4900>
EIT_PILEWL :
Procédure globale _bAdminRecreerBaseClient_HFCS (ServeurSaaS._bAdminRecreerBaseClient_HFCS), line 170
Procédure globale _bAdminRecreerBaseClient (ServeurSaaS._bAdminRecreerBaseClient), line 88
Procédure globale SaaSAdminCreeBaseClient (WebserviceSaaS.SaaSAdminCreeBaseClient), line 49
EIT_DATEHEURE : 13/03/2018 11:11:29

Error code: 2

Additional Information:
EIT_PILEWL :
Procédure globale SaaSAdminCreeBaseClient (WebserviceSaaS.SaaSAdminCreeBaseClient), line 50
EIT_DATEHEURE : 13/03/2018 11:11:29
EIT_TYPE_WDFILE : <7>
EIT_IDCODE : <458752>

Error code: 101601
Level: non-fatal error

Dump of the error of 'wd210com.dll' module (21.0.58.0).
Identifier of detailed information (.err): 101601
Debugging information:
Fonction (10,369)
Additional Information:
EIT_PILEWL :
Local Procedure SendFilesToCloud (WIN_WaitForProcess.PROCEDURE.SendFilesToCloud), line 67
EIT_DATEHEURE : 13/03/2018 11:11:27
EIT_TYPE_WDFILE : <2>
EIT_IDCODE : <458752>