After update to the developer i get the following error

[helmut-winkelbach]

Oops, an error occurred!
An exception occurred while executing 'SELECT uid, l10n_parent, mp3, ogg, h264, ogv, poster, web_m, deleted FROM tx_html5mediakit_domain_model_media WHERE uid = ?' with params [15]: Unknown column 'poster' in 'field list'

I got even more errors, BE and FE is not avoilable.
Oops, an error occurred!
The requested resource "/module/tools/ExtensionmanagerExtensionmanager" was not found.
More information regarding this error might be available online.With the TER version translations didn't show content elements.

[astehlik]

The reason you are getting this error is that a new column poster was introduced with #5

Please run the database analyser and add the missing column as described here.

Cheers
Alex