error on start:

Uncaught TypeError: Cannot set properties of undefined (setting 'type')
at push../node_modules/mathjs/lib/esm/type/fraction/Fraction.js.Object.isClass (Fraction.js:9:1)
at assertAndCreate (factory.js:35:1)
at ./node_modules/mathjs/lib/esm/entry/pureFunctionsAny.generated.js (pureFunctionsAny.generated.js:62:1)