Having problems uploading demo files. Getting a lot of errors (fails). I adjusted the php settings as indicated in the documentation and still has no effect. Demo site is not functional as is. I tried to re-upload the files but it is still nonfunctional and now I have a bunch of duplicated assets. Below is the error log. Please advise.

---Upload files---
Widget file was not uploaded. Error: File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.
---Upload files---
Customizer file was not uploaded. Error: File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.
---Upload files---
Redux file was not uploaded. Error: File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.
---Upload files---
The import files were successfully uploaded!
Initial max execution time = 3600
Files info:
Site URL = https://new.kevinalter.com
Data file = /home/kevinalter/public_html/new.kevinalter.com/wp-content/uploads/2018/05/content-3.xml
Widget file = not defined!
Customizer file = not defined!
Redux files:
not defined!
------
New AJAX call!
[WARNING] Failed to import product_visibility exclude-from-catalog
[WARNING] Failed to import product_visibility exclude-from-search
[WARNING] Failed to import product_type external
[WARNING] Failed to import product_visibility featured
[WARNING] Failed to import product_type grouped
[WARNING] Failed to import product_visibility outofstock
[WARNING] Failed to import product_visibility rated-1
[WARNING] Failed to import product_visibility rated-2
[WARNING] Failed to import product_visibility rated-3
[WARNING] Failed to import product_visibility rated-4
[WARNING] Failed to import product_visibility rated-5
[WARNING] Failed to import product_type simple
[WARNING] Failed to import product_type variable
[WARNING] Failed to import product_cat BED
[WARNING] Failed to import product_cat CABINET
[WARNING] Failed to import product_cat CHAIR
[WARNING] Failed to import product_cat DESK
[WARNING] Failed to import product_cat MISC
[WARNING] Failed to import product_cat SOFA
------
New AJAX call!
[WARNING] Failed to import product_visibility exclude-from-catalog
[WARNING] Failed to import product_visibility exclude-from-search
[WARNING] Failed to import product_type external
[WARNING] Failed to import product_visibility featured
[WARNING] Failed to import product_type grouped
[WARNING] Failed to import product_visibility outofstock
[WARNING] Failed to import product_visibility rated-1
[WARNING] Failed to import product_visibility rated-2
[WARNING] Failed to import product_visibility rated-3
[WARNING] Failed to import product_visibility rated-4
[WARNING] Failed to import product_visibility rated-5
[WARNING] Failed to import product_type simple
[WARNING] Failed to import product_type variable
[WARNING] Failed to import product_cat BED
[WARNING] Failed to import product_cat CABINET
[WARNING] Failed to import product_cat CHAIR
[WARNING] Failed to import product_cat DESK
[WARNING] Failed to import product_cat MISC
[WARNING] Failed to import product_cat SOFA
------
New AJAX call!
[WARNING] Failed to import product_visibility exclude-from-catalog
[WARNING] Failed to import product_visibility exclude-from-search
[WARNING] Failed to import product_type external
[WARNING] Failed to import product_visibility featured
[WARNING] Failed to import product_type grouped
[WARNING] Failed to import product_visibility outofstock
[WARNING] Failed to import product_visibility rated-1
[WARNING] Failed to import product_visibility rated-2
[WARNING] Failed to import product_visibility rated-3
[WARNING] Failed to import product_visibility rated-4
[WARNING] Failed to import product_visibility rated-5
[WARNING] Failed to import product_type simple
[WARNING] Failed to import product_type variable
[WARNING] Failed to import product_cat BED
[WARNING] Failed to import product_cat CABINET
[WARNING] Failed to import product_cat CHAIR
[WARNING] Failed to import product_cat DESK
[WARNING] Failed to import product_cat MISC
[WARNING] Failed to import product_cat SOFA
------
New AJAX call!
[WARNING] Failed to import product_visibility exclude-from-catalog
[WARNING] Failed to import product_visibility exclude-from-search
[WARNING] Failed to import product_type external
[WARNING] Failed to import product_visibility featured
[WARNING] Failed to import product_type grouped
[WARNING] Failed to import product_visibility outofstock
[WARNING] Failed to import product_visibility rated-1
[WARNING] Failed to import product_visibility rated-2
[WARNING] Failed to import product_visibility rated-3
[WARNING] Failed to import product_visibility rated-4
[WARNING] Failed to import product_visibility rated-5
[WARNING] Failed to import product_type simple
[WARNING] Failed to import product_type variable
[WARNING] Failed to import product_cat BED
[WARNING] Failed to import product_cat CABINET
[WARNING] Failed to import product_cat CHAIR
[WARNING] Failed to import product_cat DESK
[WARNING] Failed to import product_cat MISC
[WARNING] Failed to import product_cat SOFA