Hi Team, 
    
Good day!
Can you please help us resolve our issue with regards the error
      that appeared on our system? Upon clicking the POST and PRINT
      button on Receipt Module the "INTERNAL SERVER ERROR" appears, we
      cannot proceed on our transaction due to that error. It's very
      inconvenient for the accounting team that they can't update their
      records, kindly, help us resolve this issue immediately. 
    
Version of LedgerSMB 1.3.46
Hoping to hear from you soon and thank you.