Error during installation

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This shows up in a browser when I try to install Concrete5:

An exception occurred while executing 'CREATE TABLE btVideo (bID INT UNSIGNED NOT NULL, webmfID INT UNSIGNED DEFAULT 0, oggfID INT UNSIGNED DEFAULT 0, posterfID INT UNSIGNED DEFAULT 0, mp4fID INT UNSIGNED DEFAULT 0, width INT UNSIGNED DEFAULT NULL, height INT UNSIGNED DEFAULT NULL, PRIMARY KEY(bID)) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE = InnoDB': SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'btvideo' already exists.


Running on MariaDB (5.5.5-10.1.16-MariaDB) and PHP 7.0.10
I install to a clean database.

Any advices?