The federal government shutdown has been over for a month-and-a-half, but it has had a lasting financial affect on at least one local arts organization that calls Glen Echo Park home.

Adventure Theatre MTC, the musical theater company and training center, was helpless as 19 of its performances of “Goodnight Moon” were cancelled because the National Park Service closed Glen Echo Park during the shutdown.

A day before the end of the shutdown, the group predicted a loss of $3,000 per cancelled show. That’s more than $50,000 the company is looking to make up to proceed with programming at its Glen Echo Park performance space and facility in Rockville’s Wintergreen Plaza shopping center.

On Dec. 8, Adventure Theatre MTC will host singer Sandy Bainum for a one-night holiday benefit concert to help the recovery. Tickets are $35 each.

“Although the situation is temporarily resolved with the government and the national parks, without a full resolution we may have to shut our doors again so we need as much positivity and holiday cheer as possible,” producing artistic director Michael Bobbitt said.

For more information and for tickets, visit the Adventure Theatre website.