I'm using CSV Improved for a long time.
Without changing anything, it runs now unstable.
Errors like this appearing
Error
No template has been selected for export. Make sure you have selected a template from the dropdown list which you want to export.
or non (attached log)
The result is always the same,
the xml file does not contain the numbers of products as stated and seems to be corrupted
Google error
1 ERROR: XML-Formatting error .
your feed contains a char, that is not allowed in UTF-8 encoding.
No idea why this happens, because I have no new products, which could be the problem.
Log files, template and xml files are attached
csvi.zip
PHP version 7.0.27
Joomla! version 3.8.5
VirtueMart 3.2.12
CSVI Pro 7.4.1