Installing problem

Hi I'm having problems installing :-

Warning
JInstaller: :Install: Can't find Joomla XML setup file.
JInstaller: :Install: Can't find XML setup file.
JInstaller: :Install: Error SQL Table 'cumbriat_joom507.#__zhosmmaps_maptypes' doesn't exist
Extension Update: SQL error processing query: DB function failed with error number 1146
Table 'cumbriat_joom507.#__zhosmmaps_maptypes' doesn't exist
SQL =

ALTER TABLE `#__zhosmmaps_maptypes` ADD `url_template` text NOT NULL;

Package Install: There was an error installing an extension: com_zhosmmap.zip
Error
Error installing package


Thanks for your help

Hi.
I checked it and all is good.
I downloaded package from JED and install on new site.

If you install on new site - try to use default template.
Or do you trying to install update?

Just tried again and get same error

Warning
JInstaller: :Install: Can't find Joomla XML setup file.
JInstaller: :Install: Can't find XML setup file.
JInstaller: :Install: Error SQL Table 'cumbriat_joom507.#__zhosmmaps_maptypes' doesn't exist
Extension Update: SQL error processing query: DB function failed with error number 1146
Table 'cumbriat_joom507.#__zhosmmaps_maptypes' doesn't exist
SQL =

ALTER TABLE `#__zhosmmaps_maptypes` ADD `url_template` text NOT NULL;

Package Install: There was an error installing an extension: com_zhosmmap.zip


Downloaded from JED...
It's not a new site..
Fresh install not update..

THANKYOU for your help..

Check your PHP settings for max filesize
When you select file, you can see current max file size.

My extension has about 7Mb, therefore check you have at least 8M

If it is new installation, ie you haven't any data, try to uninstall it and install again. In this case all data and tables will be dropped and created again.

PHP settings for max filesize is set to 32
I can't uninstall it because it is not installed...

Still getting same error ....
tried to install from url
tried install from floder
tried upload package file...