Error: FARL/Blueprint.lua:96: missing second position argument

This fails when trying to read a horizontal blueprint.

string i used is:

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

(requires naked rails mod)

edit: turns out the blueprint had no rails that's why there was an error

模组 全自动铺轨机 [FARL] (4.1.2) 引发了无法恢复的错误。
请向模组作者报告此错误。

Error while running event FARL::on_init()
FARL/control.lua:79: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
FARL/control.lua:79: in function 'getRailTypes'
FARL/control.lua:228: in function <FARL/control.lua:222>