This thread is resolved. Here is a description of the problem and solution.
Translating contact form on home page for Zerif Lite using WPForms
1) Copy the following code in WPML->Settings -> Custom XML configuration
<wpml-config> <admin-texts> <key name="theme_mods_zerif-lite"> <key name="zerif_contactus_shortcode"/> </key> </admin-texts> </wpml-config>
2) Once you place the code there, go to WPML-> Settings -> Multilingual content setup and refresh the page.
Once you have created language configuration files you need to go to WPML->String Translation and search the strings that you have inserted in the theme options and translate the shortcode or use the same shortcode for the secondary languages.
This is the technical support forum for WPML - the multilingual WordPress plugin.