AUGUSTA — The House of Representatives gave preliminary approval Wednesday to a bill designed to fix a clerical error that cut $38 million from an energy-efficiency program popular with Maine homeowners and businesses. The proposal, L.D. 1215, sponsored by Rep. Sarah Gideon, D-Freeport, is what Democrats have described as a “clean fix” that adds a missing “and” to the omnibus energy law, a sweeping initiative that Democrats and Republicans negotiated and passed in 2013.