Variable $firstName in PHPDoc tag @var does not exist.

Variable $lastName in PHPDoc tag @var does not exist.

Method Upmind\ProvisionProviders\WebsiteBuilders\Providers\Weebly\Helper\WeeblyApi::getSiteId() never returns null so it can be removed from the return type.

PHPDoc tag @return with type void is incompatible with native type string|null.