A makeup manufacturer claims the star owes $200,000 for her edible "Dessert" line

Jessica Simpson is being sued over her cosmetic line “Dessert,” according to TV’s Celebrity Justice, citing legal papers filed in Los Angeles County Superior Court by Cosmojet, a California-based cosmetics company.

The lawsuit claims Simpson, her cosmetic company Dessert Beauty Inc. and the retail outlet Sephora owe Cosmojet nearly $200,000 for products they say they manufactured and sold to Dessert. Of the nearly $1 million in products Cosmojet alleges it has sold, only $800,000 reputedly has been paid.

A rep for Simpson said in a statement: “Jessica Simpson is a spokesperson for Dessert products and has no involvement in the day-to-day operation of the company’s business. Ms. Simpson has no knowledge whether Cosmojet’s claim has any basis, nor does she have any responsibility for the company’s accounting and billing procedures or payment obligations.”

The spokesperson further added: “Ms. Simpson does intend to vigorously dispute Cosmojet’s meritless claims against her and to take legal action against Cosmojet for involving her in this matter.”

Simpson’s edible cosmetics line features such products as “Deliciously Kissable Sugar Scrub” and “Powdered Sugar Deliciously Kissable Body Shimmer.”

All in all, this has been a big newsmaking week for Jessica Simpson, both personally and professionally.

Despite rumors that her marriage to Nick Lachey was on the rocks following a wild bachelor party he attended on Oct. 12, Simpson, 24, told PEOPLE earlier this week, “Our relationship is better than it’s ever been. … We are absolutely not breaking up.”

On Wednesday, Simpson announced plans to launch her own junior sportswear line, which will land in stores in time for next year’s back-to-school season.

On Nov. 23, Columbia Records will release Simpson’s ReJoyce: The Christmas Album and the Jessica Simpson Reality Tour Live DVD, it was announced Friday.