Google sheet and graphic

I read and write data on google sheet, sometimes I get an error message as you can see in the photo, but everything works fine.
The second problem is that sometimes negative data can be received from the sensor by mistake, and in this case, the application does not draw graphics.
Is there a way to prevent this from happening - ignoring valuable data?

Perhaps use this to 'format' your data stream

Returns the absolute value of the given number.\

or use a conditional statement (If..then ) to filter out negative values from your data stream.

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yes it worked thank you so do you have any suggestions for my first question

Everything works fine :cry: You could try placing this Block (just the empty Block) and it might remove the error notice but will not fix the issue perhapsMagic

I have removed the message of all errors that may occur so :sırıtma: