Supplier None not found!

Hello Everyone!

When I try to import Purchase Invoice data via an Excel sheet, I get the following error:
Supplier None not found
What is the issue?

Thank you in advance…

Review the sheet you’re uploading, In the supplier Column you will find one named none, it doesn’t exist in the system so update it to the real supplier name and the error will not appear, then the process will succed

I realy review the sheet , i donot have any cell have "none " value

Does it have a blank/null value?!

I have solved the problem
I found out that the error was because the redis server has a glitch

Uh, Wow.

What did you do to solve the redis glitch ?