Formal error: Invalid calling sequence for function modules

What causes this issue?

Program error in an application program in which mass documents are to
be created. After the initialization call for mass documents,
<ZH>FKK_CREATE_DOC_MASS_START</>
only the following calls for creating documents -
<ZH>FKK_CREATE_DOC_MASS</> or <ZH>FKK_CREATE_DOC_MASS_AND_CLEAR</> -
are permitted. Instead, one of the function modules
<ZH>FKK_CREATE_DOC</> or <ZH>FKK_CREATE_DOC_AND_CLEAR</>
was used. You can only use these function modules to create single
documents.

System Response

Error message

How to fix this error?

INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX LANGUAGE EN

Procedure for System Administrators

INCLUDE FICA_NA_OSS OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.