What did I do wrong when installing this single pole smart switch?

[Khmchitown]

I replaced a single pole to exterior lights with a smart switch. Next to it is a 3way to my foyer light. The foyer and the smart switch to exterior works. However I seem to have killed the power to an exterior outlet. In order to get the switch to work, I had connect the red switch pigtail to a black wire I assume was the load? But then I had to connect the black switch pigtail to a cluster that included a red line (note I realize there may be an unnecessary extra pigtail in there that I have since removed). Any advice on how to get power back to the outlet receptacle?

 

[Megawatt]

View attachment 108625
I replaced a single pole to exterior lights with a smart switch. Next to it is a 3way to my foyer light. The foyer and the smart switch to exterior works. However I seem to have killed the power to an exterior outlet. In order to get the switch to work, I had connect the red switch pigtail to a black wire I assume was the load? But then I had to connect the black switch pigtail to a cluster that included a red line (note I realize there may be an unnecessary extra pigtail in there that I have since removed). Any advice on how to get power back to the outlet receptacle? View attachment 108625

Sorry for the long delay but the biggest problem I see is the neutrals or white wires are hooked to the single pole switch. You sound only have 2 wires terminated to the switch and an equipment ground. I’m guessing that one of the white wires was being used for power to actually turn the light on. It should have been taped with black or red to identify its purpose.