unable to manage rooms types

I think that error is caused by not having the attributes module for ubercart installed. It's not required or used by the hotel module, but it seems like some of the code I wrote to work around ubercart expecting products to have attributes in a previous version is not playing nicely anymore. Though I don't know what would cause something like this on that particular screen off hand. I'll have to do a bit of testing on this.

I'm confused about the version of ubercart you're running though, the version number you posted doesn't make sense

Marking as a duplicate of Issue #632640: uc_hotel not working with ubercart 2.x release (only works with 2.x release candidates), as I'm pretty certain the issues are entirely related to incompatibility between the hotel booking module and the final released version(s) of ubercart.

I have changed the status of this, as it really is not a duplicate issue afterall..

I've figured out what the error message is referring to, but can't seem to see why the message would be generated in the first place.

The first is referring to the #attributes field of the form generation code for rate calendars, which sets elements of a calendar month within a rate type to a specific class so that the bulk rate assign javascript can work.

The second is referring to the function that hides the shipping fields if the form being displayed is the 'hotel_room_type' form, AND uc_shipping is enabled. If these conditions aren't met, it should simply return and do nothing.

I see no reason for either of these errors to be displayed, so it has to be something to do with your PHP settings, and should not be affecting functionality, unless there is some other issue that the screenshot you've provided is not demonstrating.

Since no additional information was ever provided, and the problem could not be duplicated I can only assume it was solved.