Fix is easy from now on as I found what tables are affected. But the users should enter this text manually from now on or at least they have to be sure that after copy they remove these not visible characters otherwise they will get these messages continuously, or we need to automatize the below cleaning process.
The below function has to be created only once
CREATE FUNCTION [Trim] (
RETURNS nvarchar(max) AS
DECLARE @Result nvarchar(max)
SET @Result = LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(
LTRIM(RTRIM(@Str)), CHAR(9), ''), CHAR(10), ''), CHAR(11), ''), CHAR(12), ''), CHAR(13), '')))
Then the below attributes has to be adjusted with this function.
update OR172700 set OR17005 = dbo.Trim(OR17005), OR17006 = dbo.Trim(OR17006)
update OR242700 set OR24005 = dbo.Trim(OR24005), OR24006 = dbo.Trim(OR24006)
And it works.