attach.js:106 Uncaught TypeError: Cannot read property 'file_url' of null
at s.on_upload_complete (attach.js:106)
at VueComponent.on_success (attach.js:61)
at XMLHttpRequest.r.onreadystatechange (FileUploader.vue?rollup-plugin-vue=script.js:363)
@Akram_Mutaher
Eventually, I found the solution
there is check field in system setting
Allow Guests to Upload Files
When enabled this will allow guests to upload files to your application, You can enable this if you wish to collect files from user without having them to log in, for example in job applications web form.
by using the above option , is there a possibility that supplier can upload documents in supplier portal? by enabling the system settings → allow guests to upload files