training done with the version 2.1.1 not working now despite I don't change any thing

@ChWick Hello! I used Calamari ocr 2.1.1 version 3 months ago and it works well but now when I try to use the same version I created first a virtual environment for installation I used this command “!pip install calamari-ocr==2.1.1” then I installed tensorflow !pip install tensorflow==2.4.0 it returns me this error :

2021-08-30 05:12:57.490066: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcudart.so.11.0
2021-08-30 05:12:59.615844: I tensorflow/compiler/jit/xla_cpu_device.cc:41] Not creating XLA devices, tf_xla_enable_xla_devices not set
2021-08-30 05:12:59.617007: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcuda.so.1
2021-08-30 05:12:59.634450: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:941] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
2021-08-30 05:12:59.635316: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1720] Found device 0 with properties: 
pciBusID: 0000:00:04.0 name: Tesla P100-PCIE-16GB computeCapability: 6.0
coreClock: 1.3285GHz coreCount: 56 deviceMemorySize: 15.90GiB deviceMemoryBandwidth: 681.88GiB/s
2021-08-30 05:12:59.635397: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcudart.so.11.0
2021-08-30 05:12:59.638811: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcublas.so.11
2021-08-30 05:12:59.638923: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcublasLt.so.11
2021-08-30 05:12:59.640346: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcufft.so.10
2021-08-30 05:12:59.640746: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcurand.so.10
2021-08-30 05:12:59.644211: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcusolver.so.10
2021-08-30 05:12:59.645036: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcusparse.so.11
2021-08-30 05:12:59.645296: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library libcudnn.so.8
2021-08-30 05:12:59.645463: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:941] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
2021-08-30 05:12:59.646330: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:941] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
2021-08-30 05:12:59.647058: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1862] Adding visible gpu devices: 0
/opt/conda/lib/python3.7/site-packages/paiargparse/dataclass_json_overrides.py:73: RuntimeWarning: `NoneType` object value of non-optional type bidi_direction detected when decoding BidiTextProcessorParams.
  warnings.warn(f"`NoneType` object {warning}.", RuntimeWarning)
/opt/conda/lib/python3.7/site-packages/paiargparse/dataclass_json_overrides.py:73: RuntimeWarning: `NoneType` object value of non-optional type tfaip_commit_hash detected when decoding CalamariScenarioParams.
  warnings.warn(f"`NoneType` object {warning}.", RuntimeWarning)

How can I resolve this problem? Thanks in advance!

[ChWick]

I dont see an error in the output: the two RunimeWarnings can be ignored.

(P.S. use three backticks to format code blocks, I updated your question)

[ChWick]

Great!