The validate button does not respond + our work around

We love Duplicator and use it extensively. Yesterday for the first time we had problems with a site migration. The issue was that the validate button didn’t respond.

Here is our work around in case this is usefull for somebody:

When having a look at the CONSOLE there were the following errors:

Loading failed for the <script> with source “https://www.domain.com/dup-installer/assets/inc.libs.js?v=4.0.1.2”. main.installer.php:1992:1
Loading failed for the <script> with source “https://www.domain.com/dup-installer/assets/js/password-strength/password.js”.

And the server log showed following entry:

[core:alert] /var/www/vhosts/domain.com/httpdocs/dup-installer/.htaccess: Invalid command 'php_value', perhaps misspelled or defined by a module not included in the server configuration

This is the content of this .htaccess file:

php_value max_execution_time 3600
php_value max_input_time -1
php_flag ignore_user_abort On
php_value post_max_size 4096M
php_value upload_max_filesize 4096M
php_value memory_limit 4294967296
php_value default_socket_timeout 3600
php_value pcre.backtrack_limit 99999999999

We deleted all the lines, saved, reloaded the Duplicator page and now the the scripts were loaded correctly and the VALIDATE button was working.