[ERROR] Session general ledger posting is out of balance. Variance: 3,134.22 CR. Transaction rolled back.

Good morning,

We upgraded from V7.10.108 to V10.1.3.005 and are getting the below error when integrating from a 3rd party into Sage via Sales orders.

 [ERROR] Session general ledger posting is out of balance. Variance: 3,134.22 CR.  Transaction rolled back.

Please assist urgently.

Br

Emmarine