I right-clicked an inserter on Vulcanus and it crashed with this error

The mod Item Request Proxy Events (0.3.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event item-request-proxy-events::on_tick (ID 0)
invalid key to 'next'
stack traceback:
[C]: in function 'next'
item-request-proxy-events/control.lua:142: in function <item-request-proxy-events/control.lua:132>

Thanks for the report! I'll work on a fix.

Should be fixed witg v0.3.3.