Cannot find module error upon fresh install running npm start

[TickJar]

After a fresh install, I'm getting the following error while running npm start:

Cannot find module 'ajv/dist/compile/codegen'
Require stack:
Cannot find module 'ajv/dist/compile/codegen'
Require stack:
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/ajv-keywords/dist/definitions/typeof.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/ajv-keywords/dist/keywords/typeof.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/ajv-keywords/dist/keywords/index.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/ajv-keywords/dist/index.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/schema-utils/dist/validate.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/schema-utils/dist/index.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/webpack-dev-server/lib/Server.js
- /Users/jaredsteffen/Sites/ticket_attendant/node_modules/react-scripts/scripts/start.js

reco-cli-bundleServe, error at react start serve.
ERROR :Error: Command failed: react-scripts start

I did ensure that all packages were installed. ajv-keywords, schema-utils, webpack-dev-server, and react-scripts are all present in my node_modules folder. I also installed reco, create-react-app, and cordova globally.