OFDM_ZKF: cannot create std::vector larger than max_size()

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Hey,

Whenever I try to launch any example in GNU Radio using OFDM Estimator, I get the following error:

Executing: /usr/bin/python3 -u /home/parallels/gr-inspector/examples/ofdm_estimation.py
thread_body_wrapper :error: ERROR thread[thread-per-block[19]: <block ofdm_zkf_c(3)>]: cannot create std::vector larger than max_size()

My GCC:
gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0

Do you have an idea how to fix it?

P.S.
Thank you for this wonderful tool!