"Ross' show was canceled as part of the fallout with Chelsea Handler," the insider revealed.
"She's the one who championed his show to go to air and produced it, so since she's not renewing her contract with the network, E! is cutting all ties."
According to the industry insider, all staff and crew on Hello Ross was told the show is ending on Monday and their last day will be Wednesday.
However, a second source insists the show hasn't been completely axed yet.
"It was just announced this week that the show will be going on hiatus," the source told Radar.
"The staff was informed it's over for now."
When Radar reached out to Mathews' camp, they had no comment.