UI control (HTML) missing in 7.3 ?

Hi,

I 'm very new and i just started using Visual Composer..

I'm in the process of migrating the models from older(7.0) version new version 7.3.

I noticed that some of the UI elements such as HTML Text are missing in the latest version and hence the migration is failed to create the models properly.

the migration log shows the below error message :

"Control 'HTM2' in element 'element name' is of type HtmlText and is not supportedThe control has been converted to an input field"

7.0

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7.3

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Not sure if i'm checking in the right place but can you please guide what are the alternative that we have now?

Is there any guide/blog which states the missing function and the alternative ways for a smooth migration?

Thank you very much for your help...