Error executing ./make_release.sh "does not contain a CMakeLists.txt file"

[ebeng]

I just fetched the 12-july build and running the make_release pops this up at the end:

-- Compiler flags:  -Wall   -O3 -funroll-loops -fomit-frame-pointer -pthread
-- Linker flags: -L/home/chiachia/chia-plotter/build/_deps/relic-src/src/low/easy/  -static
-- Configured /home/chiachia/chia-plotter/build/_deps/relic-src/include/relic_conf.h.in
SODIUM_FOUND in src/CMakeLists.txt
CMake Error at CMakeLists.txt:20 (add_subdirectory):
  The source directory

    /home/xx/chia-plotter/lib/libbech32

  does not contain a CMakeLists.txt file.

-- Configuring incomplete, errors occurred!
See also "/home/xx/chia-plotter/build/CMakeFiles/CMakeOutput.log".
See also "/home/xx/chia-plotter/build/CMakeFiles/CMakeError.log".
make: *** [Makefile:928: cmake_check_build_system] Error 1

running on Ubuntu 20.04 LTS server, any idea what this could be?

cmake is already the newest version (3.16.3-1ubuntu1).

Version MADMAX:
commit 974d6e5f1440f68c48492122ca33828a98864dfc (HEAD -> master, origin/master, origin/HEAD)
Author: Max <max.wittal@mwittal.de>
Date:   Mon Jul 12 19:03:54 2021 +0200

[ebeng]

git submodule update --init

forgot the following command (facepalm)