Why I get error: on_load_function_failed,re2 - erlang

Question

When I try to start the deployed app, I get this error:
initial_call: {supervisor,kernel,['Argument__1']}
pid: <0.1762.0>
registered_name: []
error_info: {exit,{on_load_function_failed,re2},[{gen_server,init_it,6,[{file,"gen_server.erl"},{line,352}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}
ancestors: [kernel_sup,<0.1738.0>]
messages: []
links: [<0.1739.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 376
stack_size: 27
reductions: 117
2017-06-19 11:51:18 supervisor_report
supervisor: {local,kernel_sup}
errorContext: start_error
reason: {on_load_function_failed,re2}
offender: [{pid,undefined},{id,kernel_safe_sup},{mfargs,{supervisor,start_link,[{local,kernel_safe_sup},kernel,safe]}},{restart_type,permanent},{shutdown,infinity},{child_type,supervisor}]
2017-06-19 11:51:19 crash_report
initial_call: {application_master,init,['Argument__1','Argument__2','Argument__3','Argument__4']}
pid: <0.1737.0>
registered_name: []
error_info: {exit,{{shutdown,{failed_to_start_child,kernel_safe_sup,{on_load_function_failed,re2}}},{kernel,start,[normal,[]]}},[{application_master,init,4,[{file,"application_master.erl"},{line,134}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}
ancestors: [<0.1736.0>]
messages: [{'EXIT',<0.1738.0>,normal}]
links: [<0.1736.0>,<0.1735.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 376
stack_size: 27
reductions: 152
2017-06-19 11:51:19 std_info
application: kernel
exited: {{shutdown,{failed_to_start_child,kernel_safe_sup,{on_load_function_failed,re2}}},{kernel,start,[normal,[]]}}
type: permanent
{"Kernel pid terminated",application_controller,"{application_start_failure,kernel,{{shutdown,{failed_to_start_child,kernel_safe_sup,{on_load_function_failed,re2}}},{kernel,start,[normal,[]]}}}"}
Kernel pid terminated (application_controller) ({application_start_failure,kernel,{{shutdown,{failed_to_start_child,kernel_safe_sup,{on_load_function_failed,re2}}},{kernel,start,[normal,[]]}}})
But I have no idea how to solve this error.. any idea?
Phoenix app start:
def start(_type, _args) do
import Supervisor.Spec, warn: false
children = [
# Start the endpoint when the application starts
supervisor(MyApp.Endpoint, []),
# Start the endpoint for schools
supervisor(MyApp.Schools.Endpoint, []),
# Start the Ecto repository
supervisor(MyApp.Schools.Repo, []),
supervisor(MyApp.Repo, []),
]
opts = [strategy: :one_for_one, name: MyApp.Supervisor]
Supervisor.start_link(children, opts)
end