Hi David,
option “woocommerce_db_version was not in the wp_options table. I have now inserted it in the database using the following SQL syntax: insert into wp_options (option_name, option_value, autoload) Values (‘woocommerce_db_version’, ‘3.5.6’, ‘yes’)
It works now, thanks for putting me on the right track here.
Kind regards,
Jean-Paul de Jonge