plssem cannot run estat indirect effects

#1
I run plssem (AT > AT1 AT2 AT3) (RP > RP1 RP2 RP3 RP4 RP5) (PCB > PCB1 PCB2 PCB3 PCB4) (SN > SN1 SN2 SN3) (IN > IN1 IN2 IN3) (WSRB > WSRB1 WSRB2 WSRB3 WSRB4), structural (AT RP, PCB RP, RP IN, IN AT, IN PCB, SN IN, IN WSRB) boot(200) seed(123) stats correlate(lv). However, I cannot run estat indirect, effects (IN AT RP, IN PCB RP, WSRB IN AT, WSRB IN PCB,WSRB IN SN) boot(200) seed(456).

. estat indirect, effects (IN AT RP, IN PCB RP, WSRB IN AT, WSRB IN PCB,WSRB IN SN) boot(200) seed(456)
Bootstrapping indirect effects...
invalid syntax
r(111);

Does anyone have any idea?