Upgrading Drupal

I have been upgrading Drupal core from 7.32 to 7.38 version and it was giving me the below error:

EntityMalformedException: Missing bundle property on entity of type node. in entity_extract_ids() (line 7836 of xxx\includes\common.inc).

Solution : So I replaced the latest Drupal 7.38 includes/entity.inc with Drupal 7.32 includes/entity.inc and that solved the issue.

Also here are the steps I followed:

Hi I upgraded to 7.37 yesterday (again) and when I log into the site I get WSOD. The error log has this entry on it

08-Jul-2015 01:01:01 UTC] PHP Fatal error: Call to undefined function phptemplate_get_ie_styles() in /home/brukube/public_html/update/sites/default/themes/garland/maintenance-page.tpl.php on line 23

How do I resolve this and upgrade. No errors after running update.php. Cna I edit out line 23?

Help! I really want to move up to D7.

The Migrate module (migrate_d2d) does not handle comments with file attachments. What is the best way to keep or restore the relationship between files and comments?

Hi to all!
I have a problem with upgrade D6 to D7.
What I did:
1) Ugrade D6 to latest version;
2) Disable all modules (exept core modules)
3) Delete all files, exept my own files and "sites" folder;
4) Download latest D7 version, start update.php;
Than I have some warnings and errors.
The first, and the main, I can't use admin page. Drupal says: "you have no administer elements". I can only enable/disable modules on "admin/modules" and give permissions to them.
Also, on update.php drupal says:

We have a developer that created a custom theme. This was uploaded into our Drupal site using the admin upload theme interface. The developer wishes to update that theme with a new version. I am told that this requires that the old theme is manually deleted. In other words, they cannot upload and install the new version through the admin web interface. Is this correct? If not then what, if anything, must be done to allow such updates to occr?

Hello,

after updating my site from Drupal 7.36 to 7.38 my existing Articels are empty when trying to edit them.
The strange point that there is content in the articels and it shows, but only when clicking edit it is empty.
So I cannot edit anything because it shows empty.

What could be the issue?

Thanks a lot.