C++ solver returned internal error code; see long text

What causes this issue?

INCLUDE RMS_FRM_CALC_API_GEN OBJECT DOKU ID TX
The C++ solver for calculating the explosion has triggered an internal
error code.

System Response

INCLUDE RMS_GEN_PROC_CANC_BACK OBJECT DOKU ID TX

How to fix this error?

INCLUDE RMS_GEN_ADMIN OBJECT DOKU ID TX

Procedure for System Administrators

Check the installation and the connection setup of Easy Expert in the
<DS:TRAN.SM59>SM59</> transaction.
For more information about installing Easy Expert see the
Implementation Guide to the SAP <ZK>Environment, Health and Safety</>
component under <DS:SIMG.EHS_MD_135_06>Make Settings for Easy Expert
</>.

Error message extract from SAP system. Copyright SAP SE.