Ejabberd启用mod_ecaptcha模块后崩溃问题求助

我尝试在ejabberd-contrib里安装新的mod_ecaptcha模块，但启用后ejabberd直接崩溃了，想请大家帮忙排查下原因。

我的环境信息 #

• ejabberd版本：23.01
• Erlang版本：25.2.3

已执行的操作步骤 #

1. 先通过ejabberdctl modules_update_specs启用ejabberd-contrib
2. 安装并重新编译mod_ecaptcha：
   • 执行ejabberdctl module_install mod_ecaptcha
   • 手动编译依赖的NIF部分：make -C .ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/deps/ecaptcha/c_src
   • 执行ejabberdctl module_upgrade mod_ecaptcha
   • 编译过程没有报错，不过一开始因为缺少依赖，我额外安装了erlang-dev（命令：apt install erlang-dev）
3. 配置文件的相关设置：

   captcha_cmd: mod_ecaptcha
   captcha_url: http://myjabber:5280/captcha
   listen:
   -
     port: 5280
     module: ejabberd_http
     request_handlers:
       /captcha: ejabberd_captcha
   modules:
     mod_ecaptcha: {}
   

出现的错误情况 #

启动ejabberd后服务直接崩溃，error.log里的关键错误如下：

2023-06-19 19:59:11.892726+03:00 [error]
<0.757.0>@proc_lib:crash_report/4:539 CRASH REPORT: crasher:
initial call: ejabberd_captcha:init/1
pid: <0.757.0>
registered_name: []
exception error: undefined function ecaptcha_nif:rand_size/0
in function ecaptcha:pixels/2 (/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/deps/ecaptcha/src/ecaptcha.erl,
line 63)
in call from ecaptcha:img/3 (/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/deps/ecaptcha/src/ecaptcha.erl,
line 107)
in call from mod_ecaptcha:create_image/1 (/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/src/mod_ecaptcha.erl,
line 78)
in call from ejabberd_captcha:check_captcha_setup/0 (ejabberd_captcha.erl, line 573)
in call from ejabberd_captcha:init/1 (ejabberd_captcha.erl, line 294)
in call from gen_server:init_it/2 (gen_server.erl, line 851)
in call from gen_server:init_it/6 (gen_server.erl, line 814)

还有启动失败的critical日志：

2023-06-19 19:59:11.925067+03:00 [critical] <0.123.0>@ejabberd_app:start/2:68 Failed to start ejabberd
application: {error,
{shutdown,
{failed_to_start_child,
ejabberd_captcha,
{undef,
[{ecaptcha_nif,rand_size,[],[]},
{ecaptcha,pixels,2,
[{file,
"/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/deps/ecaptcha/src/ecaptcha.erl"},
{line,63}]},
{ecaptcha,img,3,
[{file,
"/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/deps/ecaptcha/src/ecaptcha.erl"},
{line,107}]},
{mod_ecaptcha,create_image,1,
[{file,
"/var/lib/ejabberd/.ejabberd-modules/sources/ejabberd-contrib/mod_ecaptcha/src/mod_ecaptcha.erl"},
{line,78}]},
{ejabberd_captcha,
check_captcha_setup,0,
[{file,"ejabberd_captcha.erl"},
{line,573}]},
{ejabberd_captcha,init,1,
[{file,"ejabberd_captcha.erl"},
{line,294}]},
{gen_server,init_it,2,
[{file,"gen_server.erl"},
{line,851}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},
{line,814}]}]}}}}

麻烦各位帮忙看看这个问题该怎么解决？

备注：内容来源于stack exchange，提问作者saxad