I recently migrated customers from Magento 126.96.36.199 to 2.3.1 then my magento 1 customers are not able to login getting error like:
Error : The account sign-in was incorrect or your account is disabled temporarily.Please wait and try again later
sometime bellow error also
Error : 'Invalid login or password.'
I tried to upgrade customer has using command but also getting error like
php -f bin/magento customer:hash:upgrade
Error :Notice: Undefined index: 0:1 in /var/www/html/vendor/magento/framework/Encryption/Encryptor.php on line 198
anyone have idea how to fixed this ?