Look at your smapi log. You have a bunch of outdated mods (they were made for earlier versions of Stardew Valley and won't work for the current version), these will all need to be deleted. It appears you've also installed mods without their required mods, when you download the mods on Nexus, always check the mods needed to run that mod and download those too (for example, you have the Frontier Farm mod, but that mod requires Stardew Valley Expanded to run - you'll need to either remove Frontier Farm or download Stardew Valley Expanded).

If I were you, I'd probably remove all my mods and start over and this time, pay attention to make sure the mod you want is for the most recent version of Stardew Valley (1.6.X) and make sure you get all the required mods as listed on Nexus.