Regarding sign up page

[SHIVAA17]

when i try to register as new user.it always display as email already exists.Please help.on your live website also this issue exist.
on terminal this appears:
WARNING in ./node_modules/html2canvas/dist/html2canvas.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from 'C:\Users\shiv\Desktop\MedImpact\client\node_modules\html2canvas\node_modules\text-segmentation\node_modules\utrie\node_modules\src\index.ts' file: Error: ENOENT: no such file or directory, open 'C:\Users\shiv\Desktop\MedImpact\client\node_modules\html2canvas\node_modules\text-segmentation\node_modules\utrie\node_modules\src\index.ts'
@ ./node_modules/jspdf/dist/jspdf.es.min.js 6512:61-82
@ ./src/views/Invoice/Invoice.js 15:0-26 67:20-25
@ ./src/App.js 22:0-46 89:36-43
@ ./src/index.js 7:0-24 10:33-36

PLEASE RESPOND SIR!!!!