Error saving article quantity flow: &1, material &2, doc. number &3

What causes this issue?

An error occurred in the database update during creation of a document
for article-specific quantity flow for article &V1&, document number
&V2&.

System Response

The system can not continue processing.

How to fix this error?

Please check your settings for the number range (object "J_7LBELEG",
interval "003") and, if relevant, for the table memory area on the
database, or contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.