added a comment - - edited Thanks to Sharath Sulochana I have been looking at the file. As it is massive I was trying to extract a small part around the place where the error occured using sed and the same error occured.
root@172-23-100-213:/data/import# sed -n -e 1p -e 16906614,16906636p data.csv
3452918834529188,a724eba724eba724eba724eba724eba724eba724eba724eba724eb,0,428cec428cec428cec,0ee6e90ee6e90ee6e90ee6e9,9d90ee9d90ee,428cec428cec428cec428cec428cec,firstname.lastname@example.org@email@example.com@firstname.lastname@example.org,email@example.com,,,5e,361451.97000000003,2a39212a39212a39212a39212a3921,,3982,3452918834529188345291883452918834529188,ASASAS,"[1970, 1, 1, 0, 0, 0, 3, 1, 0, 1970, 1, 1, 0, 0,
0, 3, 1, 0, 1970, 1, 1, 0, 0, 0, 3, 1, 0]",a724eb,ArizonaArizonaArizonaArizonaArizona,8f5a108f5a108f5a108f5a108f5a10,"[83, 93, 93, 129, 181, 251]",ArizonaArizonaArizonaArizonaArizona,5ec786 9d90ee5ec786 9d90ee
sed: read error on data.csv: Input/output error
We can see we get the exact same error that we did on cbimport which further indicates the issue is with the file. I will keep trying to narrow down what exacly is the issue with the file.
After doing some googling it seems that this could be a disk issue. Unfortunately this is not my area of expertise. Patrick Varley fo you know how to test if it is a disk issue?