W3C Validation problem

Hello folks,
thanks a lot for this nice plugin. REally appreciate.
I have an issue when validating my page for HTML errors, I get three errors.
It says:

#1:

Element div not allowed as child of element span in this context. (Suppressing further errors from this subtree.)

ocated at <div property=”address” typeof=”PostalAddress”><span

#2:

Bad value for attribute src on element img: Must be non-empty.

an>.</div><img property=”logo” src=”” />Phone:

#3:

An img element must have an alt attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

an>.</div><img property=”logo” src=”” />Phone:

I think I found the code for that in

gsas_schema_for_organisation.php

Now, I can see that there is a div from row 24 to row 31 INSIDE a span (row 21 to row 38). I am not so familiar with coding but is there a workaround or doesnt it matter for anything?

Is this maybe also the reason why I get the other two errors for the whole logo thing, which is located in rows 32 and 33?

I could add an alt to row 33 but again, I dont want to screw anything up here.

Kindest regards for your help and I am looking forward to an answer.

Adam

https://www.ads-software.com/plugins/google-seo-author-snippets/