Cannot read property 'fromDataURL' of undefined

[AsiaQuite]

Hello,
While i use this signature pad we can't work on that i got issue of

VM976:37 ERROR TypeError: Cannot read property 'fromDataURL' of undefined
at SignaturePadComponent.set [as formDataURL] (signature-pad.component.js:31)
at updateProp (core.js:22207)
at checkAndUpdateDirectiveInline (core.js:21966)
at checkAndUpdateNodeInline (core.js:23265)
at checkAndUpdateNode (core.js:23227)
at debugCheckAndUpdateNode (core.js:23861)
at debugCheckDirectivesFn (core.js:23821)
at Object.eval [as updateDirectives] (SurveyCreateComponent.html:43)
at Object.debugUpdateDirectives [as updateDirectives] (core.js:23813)
at checkAndUpdateView (core.js:23209)

Can you help us how we can resolve this issue