If You need to use mmtimer and CSDM2 simultaneously, use CSDM 2.1.2 by Bailopan then. I'm not going to investigate my time to solve the problem which happens only with mmtimer plugin. I just don't have time to do it. I told You - if the problem is concerning to compatibility CSDM 2.1.2k with other AMX X plugin, then I can ask the author of this plugin here to find the source of the problem. Actually I cannot believe mmtimer works fine with CSDM 2.1.2, but it doesn't with 2.1.2k. The only diffrence between those version is with finding weapons to remove from the map after droping the weapon by the player. 2.1.2k is especially designed to work on servers with bots.
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The Fullpack of podbot mm V3B22 - 24 apr 2012!!! is available here. The All-In-One 3.2a package - 02 jun 2013 (AMX X 1.8.2 [with ATAC 3.0.1b , CSDM2.1.3c beta, CM OE 0.6.5, podbot mm V3B22c and mm 1.20) is available here. The newest Beta V3B23a (rel. 28 august 2018!!!) is available here.