Awkward error in rendering v-grid

[sanjaybh07]

I am new to Vue JS..I wanted to make use of revo-grid first time, Firstly, I was stucked in the issue of showing no record display in the grid..Now , the issue is changed in an awkward error [vgrid.js?9bbb:1 Uncaught (in promise) TypeError: r is not a function at m (vgrid.js?9bbb:1:1) at renderComponentRoot (runtime-core.esm-bundler.js?5c40:917:1) at ReactiveEffect.componentUpdateFn [as fn] (runtime-core.esm-bundler.js?5c40:5580:1) at ReactiveEffect.run (reactivity.esm-bundler.js?a1e9:185:1) at instance.update (runtime-core.esm-bundler.js?5c40:5694:1) at setupRenderEffect (runtime-core.esm-bundler.js?5c40:5708:1) at mountComponent (runtime-core.esm-bundler.js?5c40:5490:1) at processComponent (runtime-core.esm-bundler.js?5c40:5448:1) at patch (runtime-core.esm-bundler.js?5c40:5038:1) at mountChildren (runtime-core.esm-bundler.js?5c40:5234:1) m @ vgrid.js?9bbb:1 renderComponentRoot @ runtime-core.esm-bundler.js?5c40:917 componentUpdateFn @ runtime-core.esm-bundler.js?5c40:5580 run @ reactivity.esm-bundler.js?a1e9:185 instance.update @ runtime-core.esm-bundler.js?5c40:5694 setupRenderEffect @ runtime-core.esm-bundler.js?5c40:5708 mountComponent @ runtime-core.esm-bundler.js?5c40:5490 processComponent @ runtime-core.esm-bundler.js?5c40:5448 patch @ runtime-core.esm-bundler.js?5c40:5038 mountChildren @ runtime-core.esm-bundler.js?5c40:5234 mountElement @ runtime-core.esm-bundler.js?5c40:5143 processElement @ runtime-core.esm-bundler.js?5c40:5115 patch @ runtime-core.esm-bundler.js?5c40:5035 componentUpdateFn @ runtime-core.esm-bundler.js?5c40:5587 run @ reactivity.esm-bundler.js?a1e9:185 instance.update @ runtime-core.esm-bundler.js?5c40:5694 setupRenderEffect @ runtime-core.esm-bundler.js?5c40:5708 mountComponent @ runtime-core.esm-bundler.js?5c40:5490 processComponent @ runtime-core.esm-bundler.js?5c40:5448 patch @ runtime-core.esm-bundler.js?5c40:5038 componentUpdateFn @ runtime-core.esm-bundler.js?5c40:5660 run @ reactivity.esm-bundler.js?a1e9:185 instance.update @ runtime-core.esm-bundler.js?5c40:5694 callWithErrorHandling @ runtime-core.esm-bundler.js?5c40:155 flushJobs @ runtime-core.esm-bundler.js?5c40:396 Promise.then (async) queueFlush @ runtime-core.esm-bundler.js?5c40:285 queueCb @ runtime-core.esm-bundler.js?5c40:307 queuePostFlushCb @ runtime-core.esm-bundler.js?5c40:313 queueEffectWithSuspense @ runtime-core.esm-bundler.js?5c40:1582 scheduler @ runtime-core.esm-bundler.js?5c40:1804 triggerEffect @ reactivity.esm-bundler.js?a1e9:394 triggerEffects @ reactivity.esm-bundler.js?a1e9:384 triggerRefValue @ reactivity.esm-bundler.js?a1e9:1000 eval @ reactivity.esm-bundler.js?a1e9:1131 triggerEffect @ reactivity.esm-bundler.js?a1e9:394 triggerEffects @ reactivity.esm-bundler.js?a1e9:379 triggerRefValue @ reactivity.esm-bundler.js?a1e9:1000 eval @ reactivity.esm-bundler.js?a1e9:1131 triggerEffect @ reactivity.esm-bundler.js?a1e9:394 triggerEffects @ reactivity.esm-bundler.js?a1e9:379 triggerRefValue @ reactivity.esm-bundler.js?a1e9:1000 set value @ reactivity.esm-bundler.js?a1e9:1044 finalizeNavigation @ vue-router.esm-bundler.js?6c02:3214 eval @ vue-router.esm-bundler.js?6c02:3087 Promise.then (async) pushWithRedirect @ vue-router.esm-bundler.js?6c02:3058 push @ vue-router.esm-bundler.js?6c02:2986 install @ vue-router.esm-bundler.js?6c02:3403 use @ runtime-core.esm-bundler.js?5c40:4327 eval @ main.js?56d7:23 ./src/main.js @ app.js:1771 webpack_require @ app.js:854 fn @ app.js:151 1 @ app.js:2228 webpack_require @ app.js:854 checkDeferredModules @ app.js:46 (anonymous) @ app.js:994 (anonymous) @ app.js:997] vgrid rendering code.txt

How can anyone work on this if these kind of errors come.. Surprisingly, this issue is coming even with the code provided on GITHub which is running in Sandbox window but it is not running in my code..I did not get a single article on this error on Google also..