Training error

[tiomaldy]

MY CONFIG JSON
`{
"run_name": "ljspeech",
"run_description": "finetune 4241 for align with architectural changes",

"datasets": [
    {
        "name": "ljspeech",
        "path": "/Users/Gustavo/Desktop/ArchivosEntrenados/cuentos_clasicos_del_norte",
        "meta_file_train": "metadata.csv",
        "meta_file_val": null
    }
],
"audio":{
    
    "num_mels": 80,          
    "num_freq": 1025,       
    "sample_rate": 22050,
    "resample":true,   
    "frame_length_ms": 50,  
    "frame_shift_ms": 12.5, 
    "preemphasis": 0.98,    
    "min_level_db": -100,   
    "ref_level_db": 20,     
    "power": 1.5,           
    "griffin_lim_iters": 60,
    "signal_norm": true,    
    "symmetric_norm": false, 
    "max_norm": 1,          
    "clip_norm": true,      
    "mel_fmin": 0.0,         
    "mel_fmax": 8000.0,        
    "do_trim_silence": true  
},

"distributed":{
    "backend": "nccl",
    "url": "tcp:\/\/localhost:54321"
},



"model": "Tacotron2",   
"grad_clip": 1,      
"epochs": 1000,         
"lr": 0.0001,            
"lr_decay": false,      
"warmup_steps": 4000,   
"windowing": false,      
"memory_size": 5,       
"attention_norm": "softmax",   
"prenet_type": "bn",    
"use_forward_attn": true,    
"transition_agent": false,    
"loss_masking": false,       
"enable_eos_bos_chars": true, 

"batch_size": 4,       
"eval_batch_size":2,   
"r": 1,                 
"wd": 0.000001,        
"checkpoint": true,     
"save_step": 1000,      
"print_step": 100,      
"tb_model_param_stats": true,     
"batch_group_size": 8,  

"run_eval": true,
"test_delay_epochs": 2,       
"min_seq_len": 0,       
"max_seq_len": 150,     
"output_path": "/Users/Gustavo/Desktop/TTS-main/tacotron2-ouputs",      
"num_loader_workers": 4,        
"num_val_loader_workers": 2,    
"phoneme_cache_path": "/Users/Gustavo/Desktop/TTS-main",  
"use_phonemes": true,           
"phoneme_language": "es",     
"text_cleaner": "phoneme_cleaners"

}
`