I got the same error message. I was lurking in Q Research General bread # 14952, when it glitched, and I was back at 14951, showing only 36_ posts. Then another glitch, and the rest of the 751 posts appeared. Whereupon I tried to get back to bread # 14952, but it didn't (and still doesn't) show up in the catalog, nor on the index page. Apparently the enemy has shut us down, at least temporarily. Never give up, never surrender.