The provided source is an error message and does not contain any factual information about FC Luzern or relevant football news. Therefore, conversion into an SEO-optimized article is not possible.

According to the instructions, the article must strictly be based on the facts from the source. Since the source provides no content, no data regarding players, results, transfers, or other events concerning FC Luzern can be extracted.

It is not permitted to invent data, quotes, or events. Without a valid article basis, the request to create an article about FC Luzern cannot be fulfilled.

Please provide actual article text containing relevant information about FC Luzern. Only then can an SEO-optimized, bilingual report be generated.

Once a valid source with facts about FC Luzern is available, the task can be processed according to all SEO requirements and formatting specifications.