CE error on in Memory log

From above logs we can say error are correctable errors, from (channel:1 slot:0 and channel:0 slot:0) mean 2 channel have issues(correctable issues). Channel is a memory controller channel, responsible to communicate with a group of DIMMs. Each channel has its own independent control (command) and data bus, and can be used independently or grouped with other channels. Check this page https://www.kernel.org/doc/html/latest/driver-api/edac.html?highlight=edac#main-concepts-used-at-the-edac-subsystem. If count is too high better is replace the DIMM and the check the motherboard for hardware errors, sometime issue is not with DIMM may be with board itself. You can ignore low count of CE errors.