Function is not defined error

[subu1979]

Installed using the following command

npm install samlp

studio@Subramanyam CyLock_IDP % node server.js
ReferenceError: Functions is not defined
at Object. (/Users/studio/Desktop/CyLock_IDP/node_modules/xpath/xpath.js:3277:11)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
at Module.load (node:internal/modules/cjs/loader:1117:32)
at Module._load (node:internal/modules/cjs/loader:958:12)
at Module.require (node:internal/modules/cjs/loader:1141:19)
at require (node:internal/modules/cjs/helpers:110:18)
at Object. (/Users/studio/Desktop/CyLock_IDP/node_modules/samlp/lib/samlp.js:3:13)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
studio@Subramanyam CyLock_IDP %

[subu1979]

i think, when we run inside "strict-mode" we are getting above error.