Database error on install of App

[CalaxDev]

An exception occurred while executing 'CREATE TABLE oc_internal_messages (message_id INT UNSIGNED AUTO_INCREMENT NOT NULL, message_owner VARCHAR(64) NOT NULL, message_to VARCHAR(64) NOT NULL, message_timestamp BIGINT NOT NULL, message_content LONGTEXT DEFAULT NULL, message_delowner SMALLINT DEFAULT 0 NOT NULL, message_delto SMALLINT DEFAULT 0 NOT NULL, message_read BIGINT DEFAULT 0 NOT NULL, message_flag VARCHAR(10) NOT NULL, PRIMARY KEY(message_id)) DEFAULT CHARACTER SET utf8 COLLATE utf8_bin ENGINE = InnoDB': SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'oc_internal_messages' already exists