the OP stated
zc201 and line 915 is
as stated.
and in looking at v201, this error seems to me to be a data issue. see
this section of code.
to me, it seems that your table product_types is missing some data. the products in category 70 have a product type that are missing from that table.
as to whether the changes in v210 would account for this sort of data corruption, i can not say (ok, i probably could say, but i am not going to spend any time looking it up right now).
so i would examine that data for any missing records. it seems that creating any missing records is something that needs to be done in mysql, as the admin function does not provide for it.
see:
https://docs.zen-cart.com/dev/code/product_types/
best.
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