GraphQL requests return HTTP status code 500

[lipsotiko]

After following the README.md, none of the GraphQL requests return a response; the following error appears in the log:

Error: Failed to parse session token '<token>': jwt not active
┃       at InvalidJwtError.ShopifyError [as constructor] (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/error.js:13:28)
┃       at new InvalidJwtError (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/error.js:39:42)
┃       at Object.decodeSessionToken (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/utils/decode-session-token.js:20:15)
┃       at Object.getCurrentSessionId (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/auth/oauth/oauth.js:218:64)
┃       at Object.<anonymous> (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/utils/load-current-session.js:19:46)
┃       at step (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/node_modules/tslib/tslib.js:143:27)
┃       at Object.next (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/node_modules/tslib/tslib.js:124:57)
┃       at /home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/node_modules/tslib/tslib.js:117:75
┃       at new Promise (<anonymous>)
┃       at Object.__awaiter (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/node_modules/tslib/tslib.js:113:16)
┃       at Object.loadCurrentSession (/home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/shopify-api/dist/utils/load-current-session.js:15:20)
┃       at /home/vango/sourcecode/product-reviews-sample-app/node_modules/@shopify/koa-shopify-auth/dist/src/verify-request/login-again-if-different-shop.js:17:74
┃       at step (/home/vango/sourcecode/product-reviews-sample-app/node_modules/tslib/tslib.js:133:27)
┃       at Object.next (/home/vango/sourcecode/product-reviews-sample-app/node_modules/tslib/tslib.js:114:57)
┃       at /home/vango/sourcecode/product-reviews-sample-app/node_modules/tslib/tslib.js:107:75
┃       at new Promise (<anonymous>)

Any guidance that could be provided to successfully run this application would be appreciated.

Update

Turns out it was an issue with my system time being out of sync with the NTP server:

*Shopify/shopify-api-js#137 (comment)
*https://linuxhint.com/sync-time-ntp-server-linux/