CRJ-700 Captain reported a rejected takeoff after a LH Engine Bleed Amber Caution Message was displayed. The flight crew contacted Maintenance Control and returned to the gate for Maintenance.

Narrative

We attempted to operate Aircraft X from ZZZ to ZZZ1. I was Pilot Monitoring (PM) and the First Officer (FO) was Pilot Flying (FM). After deicing with both Type 1 (De-Ice) and Type 4 (Anti-Ice) fluid; we taxied from the ramp to Runway XX for departure with Cowl A/I ON. Once cleared for takeoff; we turned the Wing A/I ON and completed the Before Takeoff Checklist Below the Line. After the aircraft was centered on the runway; we transferred controls and the FO began to apply the thrust levers to the TOGA position. Before the FO was able to apply Full TOGA Power; and before 80 kts of airspeed was shown on the airspeed indicator; we were presented with a LH Engine Bleed Amber Caution Message.We both called for Reject immediately and the FO brought the throttles back to the idle position. ATC was notified of our Rejected Takeoff and we requested instructions in order to clear the runway so we could assess the situation and run the QRH. Once clear of the runway; I set the brake and contacted the Flight Attendants (FA) so they had an understanding of what just transpired. Immediately thereafter; an announcement to the passengers was made asking them to remain in their seats with their seat belts fastened. While I was doing this; the FO was contacting Dispatch so they were also aware of our situation as well.The Maintenance Manual says to return to the gate; but before doing so; I contacted Maintenance Control (M/C) on the telephone to discuss the situation. Maintenance confirmed the return to gate. We did as instructed and taxied back to our original gate and deplaned.