Substantial doubt about the company's ability to continue as a going concern.

“The working capital deficit, limited liquidity and maturity of the Company's secured notes raise substantial doubt about the Company's ability to continue as a going concern for a period of at least twelve months from the date these condensed consolidated financial statements are issued. ... There can be no assurance that the Company will successfully complete any such transaction or that these actions will be sufficient to alleviate the conditions giving rise to substantial doubt about the Company's ability to continue as a going concern.”