SAP Message 3W243 - Certificate Nr. &3 has already been used in run number &2 of tax year &1

Diagnosis You have maintained the number ranges for IRP5 certificates(HR_ZA_CERT). This has caused duplicate certificate numbers to begenerated. The number &V3& has already been used in tax year &V1&(during run number &V2&). Procedure Maintain the number range (using report RPCTCNW0) and set the current number to a range not yet used for tax year &V1&,or Cancel run number &V2& for tax year &V1& (using Run Administration RPCTCAW0), if applicable.