Update API access error message and include new email template
Update API access error message and include new email template

JKarathiya/Lean,JKarathiya/Lean,jameschch/Lean,AlexCatarino/Lean,AlexCatarino/Lean,StefanoRaggi/Lean,jameschch/Lean,StefanoRaggi/Lean,StefanoRaggi/Lean,JKarathiya/Lean,QuantConnect/Lean,jameschch/Lean,jameschch/Lean,QuantConnect/Lean,StefanoRaggi/Lean,QuantConnect/Lean,QuantConnect/Lean,StefanoRaggi/Lean,jameschch/Lean,AlexCatarino/Lean,AlexCatarino/Lean,JKarathiya/Lean